User equipment, access network equipment and feedback information sending and receiving method

Abstract

The embodiment of the present invention discloses a user equipment, access network equipment and feedback information sending method. The user equipment includes: a processing module, which is used to determine an uplink subframe for sending feedback information, and to determine a channel resource, wherein the first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, the first subset includes at least two downlink subframes, and the first subset is a true subset of the second subset; and a sending module, which is used to send the feedback information on the channel resource in the uplink subframe using a channel format, wherein the channel format is an n-resource unit channel format, and the first uplink channel resource carries the feedback information of the n-resource unit channel format, or the channel format is an m-resource unit channel format, and the second uplink channel resource carries the feedback information of the m-resource unit channel format, m and n are natural numbers, and m>n.

Description

[0001] This application claims the priority of PCT international application filed with the Patent Office of China on December 31, 2014, with application number PCT / CN2014 / 095978 and invention name “A user equipment, access network equipment and feedback information sending and receiving method”, the entire contents of which are incorporated by reference in this application. Technical Field

[0002] The present invention relates to the field of communication systems, and in particular to a user equipment, access network equipment and a method for sending and receiving feedback information. Background Art

[0003] In the long term evolution (LTE) system, time-frequency resources are divided into orthogonal frequency division multiplexing (OFDM) or single carrier-frequency division multiplexing access (SC-FDMA) symbols (hereinafter referred to as time domain symbols) in the time domain dimension and subcarriers in the frequency domain dimension, and the smallest resource granularity is called a resource element (RE), which represents a time-frequency grid consisting of a time domain symbol in the time domain and a subcarrier in the frequency domain. In the LTE system, the transmission of services is based on base station scheduling. The basic time unit of base station scheduling is a subframe. A subframe includes multiple time domain symbols. The specific scheduling process is that the base station sends a control channel, such as a physical downlink control channel (PDCCH) or an enhanced PDCCH (EPDCCH), which can carry scheduling information of a data channel, such as a physical downlink shared channel (PDSCH) or a physical uplink shared channel (PUSCH), wherein the scheduling information includes control information such as resource allocation information and modulation and coding methods. The user equipment (UE) detects the control channel in a subframe, and receives a downlink data channel or sends an uplink data channel according to the scheduling information carried in the detected control channel.

[0004] LTE supports frequency division duplex (FDD) and time division duplex (TDD). For FDD systems, downlink and uplink are transmitted on different carriers. For TDD systems, uplink and downlink are transmitted on the same carrier at different times.

[0005] LTE currently supports 7 different TDD uplink and downlink subframe configurations, as shown in Table 1, where D represents a downlink subframe, S represents a special subframe, and U represents an uplink subframe.

[0006] Table 1. TDD uplink and downlink subframe configuration in LTE system

[0007]

[0008] LTE uses the hybrid automatic repeat request (HARQ) mechanism. Take the following line as an example. After the UE receives the PDSCH, if the PDSCH is received correctly, the UE will feedback an acknowledgement (ACK) on the PUCCH. If the PDSCH is not received correctly, it will feedback a nonacknowledgement (NACK) on the PUCCH. For FDD, after the UE receives the PDSCH in subframe n-4, it will feedback ACK / NACK in subframe n; for TDD, the timing relationship between PDSCH reception and its corresponding ACK / NACK feedback is shown in Table 2. In Table 2, the numbers 0-9 in the first row represent uplink subframe n, the numbers in the first column represent the uplink and downlink subframe configurations, and the numbers k in the columns corresponding to the numbers in the first row constitute set K. The number k indicates that the ACK / NACK corresponding to the PDSCH in the downlink subframe nk needs to be fed back in the uplink subframe n. For example, when the uplink and downlink configuration is 1 and n is 2, K={7, 6}, indicating that uplink subframe 2 is used to feedback the ACK / NACK corresponding to the PDSCH on the two downlink subframes n-7 and n-6, where n-7 is downlink subframe 5 and n-6 ​​is downlink subframe 6.

[0009] Table 2. Timing relationship between PDSCH and its corresponding ACK / NACK in TDD system

[0010]

[0011] LTE also supports carrier aggregation (CA) technology, that is, the base station configures multiple carriers to a UE to increase the UE's data rate. Multiple carriers are sent synchronously in the time domain, and the UE can detect the PDCCH that schedules each carrier and the PDSCH corresponding to the PDCCH respectively. The specific detection process of each carrier is similar to the above single carrier case.

[0012] The LTE system supports FDD CA, TDD CA, and FDD+TDD CA. For TDD CA, it is divided into TDD CA with the same uplink and downlink subframe configuration and TDD CA with different uplink and downlink subframe configurations. In CA mode, a primary carrier and at least one secondary carrier are configured for the UE, and the PUCCH carrying ACK / NACK is only sent on the primary carrier of the UE. The PUCCH transmission mode in CA mode includes two modes: channel selection mode and PUCCH format 3. The PUCCH format 3 mode adopts the discrete Fourier transform-spread-OFDM (discrete Fourier transform-spread-OFDM, DFT-S-OFDM) transmission method, which can transmit up to 20 ACK / NACK bits and support TDD CA of up to 5 carriers. For example, taking the TDD uplink and downlink configuration 2 that is currently deployed in the mainstream network as an example, the uplink subframe 2 of one carrier can support the feedback of ACK / NACK bits of 4 downlink subframes, and the CA of TDD uplink and downlink configuration 2 of 5 carriers is 20 ACK / NACK bits.

[0013] As LTE technology continues to evolve, it may be necessary to support ACK / NACK feedback with more bits, such as more than 20 bits. How to feedback more bits

[0014] For example, more carrier CA is introduced, such as 10-carrier CA. Taking 10 TDD uplink and downlink configuration 2 carriers for CA as an example, 40 bits of ACK / NACK need to be fed back. For another example, although CA of up to 5 carriers is still supported, many of the carriers are configured as TDD uplink and downlink configuration 5. For example, the main carrier is uplink and downlink configuration 2, and the 4 auxiliary carriers are all uplink and downlink configuration 5, then 4+9*4=40 bits of ACK / NACK need to be fed back. When using the current PUCCH format 3 to feed back ACK / NACK, how to reduce the overhead while feeding back more ACK / NACK bits is an urgent problem to be solved. Summary of the invention

[0015] The embodiment of the present invention provides a user equipment, an access network device and a feedback information sending and receiving method to solve the problem of how to reduce the overhead while feeding back more feedback information bits.

[0016] In a first aspect, an embodiment of the present invention provides a user equipment, including:

[0017] A receiving module, used to receive downlink control information sent by the access network device, and receive a data channel scheduled by the downlink control information;

[0018] a processing module, configured to determine an uplink subframe for sending feedback information corresponding to the data channel, wherein the data channel is a data channel received by the receiving module, and a first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, the first subset includes at least two downlink subframes, and the first subset is a true subset of the second subset;

[0019] The processing module is further configured to determine a channel resource, wherein the channel resource is a first uplink channel resource or a second uplink channel resource, wherein the first uplink channel resource corresponds to the first subset, and the second uplink channel resource corresponds to the second subset; and

[0020] A sending module, used to send the feedback information on the channel resource in the uplink subframe using a channel format under the control of the processing module, wherein the channel resource is a channel resource determined by the processing module, the channel format is a p-codebook size channel format, and the UE uses the p-codebook size channel format to send the feedback information on a first uplink channel resource, or the channel format is a q-codebook size channel format, and the UE uses the q-codebook size channel format to send the feedback information on a second uplink channel resource, p and q are natural numbers, and q>p.

[0021] In this embodiment, the p or q codebook size channel format may refer to the feedback of feedback information (such as ACK / NACK) of a maximum of p or q codebook sizes that the channel format can support. The codebook size refers to the original number of bits before ACK / NACK encoding. Specifically, the p codebook size corresponds to the first subset, and the q codebook size corresponds to the second subset, that is, the p codebook size is determined by the number of downlink subframes in the first subset, and the q codebook size is determined by the number of downlink subframes in the second subset.

[0022] Optionally, the channel resources occupied by the p codebook size channel format include n resource units, and the channel resources occupied by the q codebook size channel format include m resource units, where m and n are natural numbers, and m is greater than or equal to n. In this way, the p codebook size channel format can also be regarded as an n resource unit channel format, and the q codebook size channel format can also be regarded as an m resource unit channel format. When m is greater than n, the following embodiments based on the m resource unit channel format and the n resource unit channel format are fully applicable to the p codebook size and q codebook size schemes, and will not be repeated herein. It is only necessary to replace the m resource unit channel format in the subsequent embodiments with the q codebook size channel format, and the n resource units correspond to the p codebook size channel format, that is, replace the n resource unit channel format with the p codebook size channel format.

[0023] It should be noted that the p codebook size channel format and the q codebook size channel format may also occupy an equal number of resource units, that is, m may also be equal to n. The specific time-frequency resources where the equal number of resource units are located may overlap or not overlap. The overlap may be partial overlap or complete overlap. Therefore, in the subsequent embodiments, although the description is made with the m resource unit channel format and the n resource unit channel format and m is greater than n, it is not limited to this, and m may be equal to n.

[0024] Optionally, the p codebook size channel format and the q codebook size channel format occupy the same number of resource units, and the length of the orthogonal code used by the p codebook size channel format is greater than the length of the orthogonal code used by the q codebook size channel format.

[0025] For the above optional solution, the user equipment provided by the embodiment of the first aspect includes:

[0026] A receiving module, used to receive downlink control information sent by an access network device, and receive a data channel scheduled by the downlink control information;

[0027] a processing module, configured to determine an uplink subframe for sending feedback information corresponding to the data channel received by the receiving module, and determine a channel resource, wherein the first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, the first subset includes at least two downlink subframes, the first subset is a true subset of the second subset, the channel resource is a first uplink channel resource or a second uplink channel resource, the first uplink channel resource corresponds to the first subset, and the second uplink channel resource corresponds to the second subset; and

[0028] A sending module is used to send the feedback information on the channel resource in the uplink subframe using a channel format under the control of the processing module, wherein the channel format is an n-resource unit channel format, and the first uplink channel resource carries the feedback information of the n-resource unit channel format, or the channel format is an m-resource unit channel format, and the second uplink channel resource carries the feedback information of the m-resource unit channel format, m and n are natural numbers, and m>n.

[0029] In a first possible implementation manner of the first aspect, the receiving module is configured to receive the data channel scheduled by the downlink control information in the following manner: receiving the data channel scheduled by the downlink control information in a downlink subframe included in a second downlink subframe set;

[0030] Wherein, in a case where the second downlink subframe set is a subset of the first subset, the channel resource determined by the processing module is the first uplink channel resource; or,

[0031] In a case where the second downlink subframe set includes only downlink subframes in the second subset and not belonging to the first subset, the channel resource determined by the processing module is the second uplink channel resource; or,

[0032] When the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset, the channel resource determined by the processing module is the second uplink channel resource.

[0033] In a second possible implementation manner of the first aspect, the receiving module is configured to receive the data channel scheduled by the downlink control information in the following manner: receiving the data channel scheduled by the downlink control information in a downlink subframe included in a second downlink subframe set;

[0034] In a case where the second downlink subframe set is a subset of the first subset, the channel resource determined by the processing module is the first uplink channel resource; or,

[0035] When the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset, the channel resource determined by the processing module is the second uplink channel resource.

[0036] Among them, the above-mentioned first possible implementation method and the second possible implementation method can be used as separate solutions, and are not dependent on the embodiment of the above-mentioned first aspect, such as the second aspect and the third aspect as follows.

[0037] In a second aspect, an embodiment of the present invention provides a user equipment, including:

[0038] A receiving module, configured to receive downlink control information sent by an access network device, and receive the data channel scheduled by the downlink control information in a downlink subframe included in a second downlink subframe set;

[0039] a processing module, configured to determine an uplink subframe for sending feedback information corresponding to the data channel received by the receiving module, and to determine a channel resource, wherein the first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, the first subset includes at least two downlink subframes, the first subset is a true subset of the second subset, and in the case where the second downlink subframe set is a subset of the first subset, the channel resource determined by the processing module is the first uplink channel resource; or, in the case where the second downlink subframe set only includes downlink subframes in the second subset and not belonging to the first subset, the channel resource determined by the processing module is the second uplink channel resource; or, in the case where the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset, the channel resource determined by the processing module is the second uplink channel resource; and

[0040] A sending module is used to send the feedback information on the channel resource in the uplink subframe using a channel format under the control of the processing module, wherein the channel format is an n-resource unit channel format, and the first uplink channel resource carries the feedback information of the n-resource unit channel format, or the channel format is an m-resource unit channel format, and the second uplink channel resource carries the feedback information of the m-resource unit channel format, m and n are natural numbers, and m>n.

[0041] In a third aspect, an embodiment of the present invention provides a user equipment, including:

[0042] A receiving module, configured to receive downlink control information sent by an access network device, and receive the data channel scheduled by the downlink control information in a downlink subframe included in a second downlink subframe set;

[0043] a processing module, configured to determine an uplink subframe for sending feedback information corresponding to the data channel received by the receiving module, and to determine a channel resource, wherein the first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, the first subset includes at least two downlink subframes, the first subset is a true subset of the second subset, and in the case where the second downlink subframe set is a subset of the first subset, the channel resource determined by the processing module is the first uplink channel resource; or, in the case where the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset, the channel resource determined by the processing module is the second uplink channel resource; and

[0044] A sending module is used to send the feedback information on the channel resource in the uplink subframe using a channel format under the control of the processing module, wherein the channel format is an n-resource unit channel format, and the first uplink channel resource carries the feedback information of the n-resource unit channel format, or the channel format is an m-resource unit channel format, and the second uplink channel resource carries the feedback information of the m-resource unit channel format, m and n are natural numbers, and m>n.

[0045] A possible implementation manner of the third aspect is that, when the second downlink subframe set only includes downlink subframes in the second subset and not belonging to the first subset, the channel resource determined by the processing module is the third uplink channel resource; the sending module is used to send feedback information in a channel format of k resource units on the third uplink channel resource under the control of the processing module, where k is a natural number, m>k.

[0046] The third uplink channel resource may be the same as the first uplink channel resource, and in this case, k=n.

[0047] It should be noted that the following possible implementations of the first aspect can be used as possible implementations of the second aspect and the third aspect, and in order to save space, they are not repeated here. The second aspect and the third aspect can also be the same as the first aspect, and the m resource unit channel format can be replaced with a q codebook size channel format, and the n resource unit channel format can be replaced with a p codebook size channel format to become a new embodiment.

[0048] In combination with the first possible implementation manner of the first aspect or the second possible implementation manner or the second aspect, or the third aspect, in the third possible implementation manner, the downlink control information includes resource indication information; the processing module is configured to determine the channel resources in the following manner: determine the channel resources used to carry the feedback information according to the resource indication information.

[0049] In combination with the third possible implementation manner, in a fourth possible implementation manner, the processing module is further used to, before determining the channel resources, obtain a second uplink channel resource set configured by the access network device, wherein the second uplink channel resource is an uplink channel resource in the second uplink channel resource set, partial resources of each uplink channel resource in the multiple uplink channel resources included in the second uplink channel resource set constitute a first uplink channel resource set, and the first uplink channel resource is an uplink channel resource in the first uplink channel resource set.

[0050] In combination with the fourth possible implementation manner of the first aspect, in a fifth possible implementation manner, the channel resource determined by the processing module is the first uplink channel resource;

[0051] The processing module is configured to determine the channel resources in the following manner:

[0052] Determine the uplink channel resource indicated by the resource indication information from the second uplink channel resource set according to the resource indication information; and determine the first uplink channel resource from the uplink channel resource indicated by the resource indication information; or,

[0053] Determine the first uplink channel resource from the first uplink channel resource set according to the resource indication information; or

[0054] The first uplink channel resource is determined according to the resource indication information, wherein the first uplink channel resource is part of the uplink channel resources indicated by the resource indication information in the second uplink channel resource set.

[0055] In combination with the fourth possible implementation manner or the fifth possible implementation manner of the first aspect, in a sixth possible implementation manner, the processing module is configured to determine the channel resource in the following manner:

[0056] According to the identification information or pre-configuration information of the user equipment, a first uplink channel resource among the uplink channel resources indicated by the resource indication information is determined, wherein the uplink channel resource indicated by the resource indication information is an uplink channel resource in the second uplink channel resource set.

[0057] Optionally, the channel resource determined by the processing module is the second uplink channel resource;

[0058] The processing module is configured to determine the channel resource in the following manner: determine the second uplink channel resource from the second uplink channel resource set according to the resource indication information.

[0059] In combination with the third possible implementation method of the first aspect, in the seventh possible implementation method, the processing module is also used to, before determining the channel resources, obtain a first uplink channel resource set and a second uplink channel resource set pre-configured by the access network device, wherein the first uplink channel resource is an uplink channel resource in the first uplink channel resource set, and the second uplink channel resource is an uplink channel resource in the second uplink channel resource set.

[0060] In combination with the seventh possible implementation manner of the first aspect, in an eighth possible implementation manner, a first state set of the resource indication information indicates the uplink channel resources in the first uplink channel resource set, and a second state set of the resource indication information indicates the uplink channel resources in the second uplink channel resource set, and the first state set and the second state set do not intersect.

[0061] In conjunction with the eighth possible implementation of the first aspect, in a ninth possible implementation,

[0062] The channel resource determined by the processing module is the first uplink channel resource, and the processing module is configured to determine the channel resource in the following manner: determining the first uplink channel resource from the first uplink channel set according to a state in a first state set of the resource indication information; or

[0063] The channel resource determined by the processing module is the second uplink channel resource, and the processing module is configured to determine the channel resource in the following manner: according to the state in the second state set of the resource indication information, determine the second uplink channel resource for the feedback information from the second uplink channel set.

[0064] In combination with the eighth possible implementation manner of the first aspect, in a tenth possible implementation manner, the status of the resource indication information indicates the uplink channel resources in the first uplink channel resource set and / or the uplink channel resources in the second uplink channel resource set.

[0065] In combination with the eighth possible implementation manner or the tenth possible implementation manner of the first aspect, in an eleventh possible implementation manner,

[0066] The channel resource determined by the processing module is the first uplink channel resource, and the processing module is configured to determine the channel resource in the following manner:

[0067] Determine, according to the resource indication information, a third uplink channel resource indicated by the resource indication information from the first uplink channel resource set and a fourth uplink channel resource indicated by the resource indication information from the second uplink channel resource set; determine the second downlink subframe set to be a subset of the first subset; and determine the third uplink channel resource to be the first uplink channel resource; or

[0068] Determine that the second downlink subframe set is a subset of the first subset; and determine, according to the resource indication information, the first uplink channel resource indicated by the resource indication information from the first uplink channel resource set;

[0069] or

[0070] The channel resource determined by the processing module is the second uplink channel resource, and the processing module is configured to determine the channel resource in the following manner:

[0071] Determine, according to the resource indication information, a fifth uplink channel resource indicated by the resource indication information from the first uplink channel resource set and a sixth uplink channel resource indicated by the resource indication information from the second uplink channel resource set; determine that the second downlink subframe set includes only downlink subframes in the second subset and not belonging to the first subset; and determine that the sixth uplink channel resource is the second uplink channel resource; or

[0072] Determine that the second downlink subframe set includes only downlink subframes in the second subset and not belonging to the first subset; and determine the second uplink channel resource indicated by the resource indication information from the second uplink channel resource set according to the state of the resource indication information; or

[0073] Determine, according to the resource indication information, a fifth uplink channel resource indicated by the resource indication information from the first uplink channel resource set and a sixth uplink channel resource indicated by the resource indication information from the second uplink channel resource set; determine that the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset; and determine that the sixth uplink channel resource is the second uplink channel resource; or

[0074] Determine that the second downlink subframe set includes the downlink subframes in the first subset and the downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset; and determine, based on the resource indication information, the second uplink channel resource indicated by the resource indication information from the second uplink channel resource set.

[0075] It should be noted that the configuration of each parameter and the execution of each step in this implementation can refer to the description of the implementation in the above text.

[0076] In a twelfth possible implementation manner of the first aspect, the processing module is further used to, before determining the channel resource, obtain a first uplink channel resource set and a second uplink channel set pre-configured by the access network device, wherein the first uplink channel resource is an uplink channel resource in the first uplink channel resource set, and the second uplink channel resource is an uplink channel resource in the second uplink channel resource set;

[0077] The downlink control information includes resource indication information, the state of the resource indication information includes a first state set and a second state set, the first state set indicates uplink channel resources in the first uplink channel resource set, the second state set indicates uplink channel resources in the second uplink channel resource set, and the first state set and the second state set are disjoint;

[0078] The processing module is configured to determine channel resources in the following manner: when the second downlink subframe set is a subset of the first subset, determining the second uplink channel resource indicated by the resource indication information from the second uplink channel resource set according to the resource indication information.

[0079] In combination with the first aspect, or any one of the first to twelfth possible implementations of the first aspect, in a thirteenth possible implementation,

[0080] Part of the time-frequency resources of the first uplink channel resources corresponding to the n resource unit channel format overlaps with part of the time-frequency resources of the second uplink channel resources corresponding to the m resource unit channel format; or

[0081] The time-frequency resources of the first uplink channel resources corresponding to the n resource unit channel format are part of the time-frequency resources of the second uplink channel resources corresponding to the m resource unit channel format;

[0082] The n resource unit channel format and the m resource unit channel format with overlapping time-frequency resources use orthogonal codes.

[0083] In combination with the first aspect, or any possible implementation of the first to thirteenth aspects of the first aspect, in the fourteenth possible implementation, the processing module is further used to determine the first subset and the second subset according to a pre-configuration before determining the channel resources.

[0084] In conjunction with the fourteenth possible implementation manner of the first aspect, in a fifteenth possible implementation manner,

[0085] The pre-configuration is independently configured for different uplink subframes.

[0086] In a fourth aspect, an embodiment of the present invention provides an access network device, including:

[0087] A sending module, configured to send downlink control information to a user equipment UE under the control of the processing module, and to send a data channel scheduled by the downlink control information to the UE under the control of the processing module;

[0088] The processing module is configured to control the sending module to send downlink control information to the UE, control the sending module to send a data channel scheduled by the downlink control information to the UE, determine an uplink subframe for receiving feedback information corresponding to the data channel, and determine a channel resource, wherein the first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, the first subset includes at least two downlink subframes, the first subset is a true subset of the second subset, the channel resource is a first uplink channel resource or a second uplink channel resource, the first uplink channel resource corresponds to the first subset, and the second uplink channel resource corresponds to the second subset; and

[0089] A receiving module, configured to receive the feedback information sent through a channel format on the channel resource in the uplink subframe, wherein the channel resource is determined by the processing module, the channel format is a p-codebook size channel format, and the UE uses the p-codebook size channel format to send the feedback information on a first uplink channel resource, or the channel format is a q-codebook size channel format, and the UE uses the q-codebook size channel format to send the feedback information on a second uplink channel resource, where p and q are natural numbers, and q>p.

[0090] As in the above embodiment, the meanings of the p codebook size channel format, the q codebook size channel format, and the codebook size can refer to the description in the above embodiment. The following embodiment based on the m resource unit channel format and the n resource unit channel format is completely applicable to the scheme of the p codebook size and the q codebook size, and will not be repeated in the following text. It is only necessary to replace the m resource unit channel format in the subsequent embodiment with the q codebook size channel format, and replace the n resource unit channel format with the p codebook size channel format.

[0091] It should be noted that the p codebook size channel format and the q codebook size channel format may also occupy an equal number of resource units, that is, m may also be equal to n. The specific time-frequency resources where the equal number of resource units are located may overlap or not overlap. The overlap may be partial overlap or complete overlap. Therefore, in the subsequent embodiments, although the description is made with the m resource unit channel format and the n resource unit channel format and m is greater than n, it is not limited to this, and m may be equal to n.

[0092] Optionally, the p codebook size channel format and the q codebook size channel format occupy the same number of resource units, and the length of the orthogonal code used by the p codebook size channel format is greater than the length of the orthogonal code used by the q codebook size channel format.

[0093] For the above optional solution, the access network device provided by the embodiment of the fourth aspect includes:

[0094] A sending module, configured to send downlink control information to a user equipment UE under the control of the processing module, and to send a data channel scheduled by the downlink control information to the UE under the control of the processing module;

[0095] The processing module is configured to control the sending module to send downlink control information to the UE, control the sending module to send a data channel scheduled by the downlink control information to the UE, determine an uplink subframe for receiving feedback information corresponding to the data channel, and determine a channel resource, wherein the first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, the first subset includes at least two downlink subframes, the first subset is a true subset of the second subset, the channel resource is a first uplink channel resource or a second uplink channel resource, the first uplink channel resource corresponds to the first subset, and the second uplink channel resource corresponds to the second subset; and

[0096] A receiving module, used for receiving the feedback information sent through a channel format on the channel resource in the uplink subframe determined by the processing module, wherein the channel format is an n-resource unit channel format, and the first uplink channel resource carries the feedback information of the n-resource unit channel format; or, the channel format is an m-resource unit channel format, and the second uplink channel resource carries the feedback information of the m-resource unit channel format, where m and n are natural numbers and m>n.

[0097] In a first possible implementation manner of the fourth aspect, the sending module is configured to send the data channel scheduled by the downlink control information to the UE in the following manner: sending the data channel scheduled by the downlink control information in a downlink subframe included in a second downlink subframe set;

[0098] in,

[0099] In a case where the second downlink subframe set is a subset of the first subset, the channel resource determined by the processing module is the first uplink channel resource; or,

[0100] In a case where the second downlink subframe set includes only downlink subframes in the second subset and not belonging to the first subset, the channel resource determined by the processing module is the second uplink channel resource; or,

[0101] When the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset, the channel resource determined by the processing module is the second uplink channel resource.

[0102] In a second possible implementation manner of the fourth aspect, the sending module is configured to send the data channel scheduled by the downlink control information to the UE in the following manner: sending the data channel scheduled by the downlink control information in a downlink subframe included in a second downlink subframe set;

[0103] in,

[0104] In a case where the second downlink subframe set is a subset of the first subset, the channel resource determined by the processing module is the first uplink channel resource; or,

[0105] When the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset, the channel resource determined by the processing module is the second uplink channel resource.

[0106] Among them, the above-mentioned first possible implementation method and the second possible implementation method can be used as separate schemes, and are not dependent on the embodiment of the above-mentioned fourth aspect, such as the following fifth aspect and sixth aspect.

[0107] In a fifth aspect, an embodiment of the present invention provides an access network device, including:

[0108] a sending module, configured to send downlink control information to a user equipment UE under the control of the processing module, and to send the data channel scheduled by the downlink control information in a downlink subframe included in a second downlink subframe set under the control of the processing module;

[0109] The processing module is configured to control the sending module to send downlink control information to the UE, control the sending module to send the data channel scheduled by the downlink control information to the UE, determine an uplink subframe for receiving feedback information corresponding to the data channel, and determine a channel resource, wherein the first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, the first subset includes at least two downlink subframes, the first subset is a true subset of the second subset, and the channel resource is a first uplink channel resource or a second uplink channel resource, and in the case where the second downlink subframe set is a subset of the first subset, the channel resource determined by the processing module is the first uplink channel resource; or, in the case where the second downlink subframe set only includes downlink subframes in the second subset and not belonging to the first subset, the channel resource determined by the processing module is the second uplink channel resource; or, in the case where the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset, the channel resource determined by the processing module is the second uplink channel resource; and

[0110] A receiving module, used for receiving the feedback information sent through a channel format on the channel resource in the uplink subframe determined by the processing module, wherein the channel format is an n-resource unit channel format, and the first uplink channel resource carries the feedback information of the n-resource unit channel format; or, the channel format is an m-resource unit channel format, and the second uplink channel resource carries the feedback information of the m-resource unit channel format, where m and n are natural numbers and m>n.

[0111] In a sixth aspect, an embodiment of the present invention provides an access network device, including:

[0112] a sending module, configured to send downlink control information to a user equipment UE under the control of the processing module, and to send the data channel scheduled by the downlink control information in a downlink subframe included in a second downlink subframe set under the control of the processing module;

[0113] The processing module is configured to control the sending module to send downlink control information to the UE, control the sending module to send a data channel scheduled by the downlink control information to the UE, determine an uplink subframe for receiving feedback information corresponding to the data channel, and determine a channel resource, wherein the first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, the first subset includes at least two downlink subframes, the first subset is a true subset of the second subset, and the channel resource is a first uplink channel resource or a second uplink channel resource, and in the case where the second downlink subframe set is a subset of the first subset, the channel resource determined by the processing module is the first uplink channel resource; or, in the case where the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset, the channel resource determined by the processing module is the second uplink channel resource; and

[0114] A receiving module, used for receiving the feedback information sent through a channel format on the channel resource in the uplink subframe determined by the processing module, wherein the channel format is an n-resource unit channel format, and the first uplink channel resource carries the feedback information of the n-resource unit channel format; or, the channel format is an m-resource unit channel format, and the second uplink channel resource carries the feedback information of the m-resource unit channel format, where m and n are natural numbers and m>n.

[0115] A possible implementation manner of the sixth aspect is that, when the second downlink subframe set only includes downlink subframes in the second subset and not belonging to the first subset, the channel resource determined by the processing module is the third uplink channel resource; the sending module is used to send feedback information in the channel format of k resource units on the third uplink channel resource under the control of the processing module, where k is a natural number, m>k.

[0116] The third uplink channel resource may be the same as the first uplink channel resource, and in this case, k=n.

[0117] It should be noted that the following possible implementations of the fourth aspect can be used as possible implementations of the fifth and sixth aspects, and in order to save space, they are not repeated here. The fifth and sixth aspects can also be the same as the fourth aspect, and the m resource unit channel format can be replaced with a q codebook size channel format, and the n resource unit channel format can be replaced with a p codebook size channel format to become a new embodiment.

[0118] In combination with the first possible implementation manner or the second possible implementation manner of the fourth aspect, in a third possible implementation manner, the downlink control information includes resource indication information, and the resource indication information is used to indicate the first uplink channel resource or the second uplink channel resource used to carry the feedback information.

[0119] In combination with the third possible implementation manner of the fourth aspect, in a fourth possible implementation manner, the processing module is also used to, before determining the channel resources, send information of a second uplink channel resource set to the UE through the sending module, wherein the second uplink channel resources are uplink channel resources in the second uplink channel resource set, partial resources of each uplink channel resource in the multiple uplink channel resources in the second uplink channel resource set constitute a first uplink channel resource set, and the first uplink channel resource is an uplink channel resource in the first uplink channel resource set.

[0120] In conjunction with the fourth possible implementation of the fourth aspect, in a fifth possible implementation,

[0121] The channel resource determined by the processing module is the first uplink channel resource, the resource indication information indicates an uplink channel resource of the second uplink channel resource set that includes the first uplink channel resource, or the resource indication information indicates the first uplink channel resource in the first uplink channel resource set; or

[0122] The channel resource determined by the processing module is the second uplink channel resource, and the resource indication information indicates the second uplink channel resource in the second uplink channel resource set.

[0123] In combination with the fifth possible implementation manner of the fourth aspect, in a sixth possible implementation manner, the resource indication information indicates an uplink channel resource in the second uplink channel resource set that includes the first uplink channel resource;

[0124] The processing module is configured to determine the channel resources in the following manner:

[0125] Determine, according to the identification information or pre-configuration information of the UE, a first uplink channel resource among the uplink channel resources indicated by the resource indication information.

[0126] In combination with the third possible implementation method of the fourth aspect, in the seventh possible implementation method, the processing module is also used to control the sending module to send information of the first uplink channel resource set and information of the second uplink channel set to the UE before determining the channel resources, wherein the first uplink channel resource is the uplink channel resource in the first uplink channel resource set, and the second uplink channel resource is the uplink channel resource in the second uplink channel resource set.

[0127] In combination with the seventh possible implementation manner of the fourth aspect, in an eighth possible implementation manner, the first state set of the resource indication information indicates the uplink channel resources in the first uplink channel resource set, and the second state set of the resource indication information indicates the uplink channel resources in the second uplink channel resource set, and the first state set and the second state set do not intersect.

[0128] In combination with the seventh possible implementation manner of the fourth aspect, in a ninth possible implementation manner, the status of the resource indication information indicates the uplink channel resources in the first uplink channel resource set and / or the uplink channel resources in the second uplink channel resource set.

[0129] In combination with any possible implementation manner of the fourth to seventh and ninth possible implementation manners of the fourth aspect, in a tenth possible implementation manner,

[0130] The receiving module is configured to receive the feedback information in the following manner: receiving the feedback information sent via the m resource unit channel format on the second uplink channel resource indicated by the resource indication information in the uplink subframe.

[0131] In conjunction with the eleventh possible implementation of the fourth aspect, in the eleventh possible implementation,

[0132] The processing module is further used to determine, according to the identification information or pre-configuration information of the UE, a first uplink channel resource in the second uplink channel resource, and control the receiving module to receive the feedback information sent through the n resource unit channel format on the first uplink channel resource; or

[0133] The processing module is further configured to determine a first uplink channel resource in the first uplink channel resources according to the resource indication information, and control the receiving module to receive the feedback information sent through the n resource unit channel format on the first uplink channel resource.

[0134] In combination with the fourth aspect, or any one of the first to eleventh possible implementations of the fourth aspect, in a twelfth possible implementation,

[0135] Part of the time-frequency resources of the first uplink channel resources corresponding to the n resource unit channel format overlaps with part of the time-frequency resources of the second uplink channel resources corresponding to the m resource unit channel format; or

[0136] The time-frequency resources of the first uplink channel resources corresponding to the n resource unit channel format are part of the time-frequency resources of the second uplink channel resources corresponding to the m resource unit channel format;

[0137] The n resource unit channel format and the m resource unit channel format with overlapping time-frequency resources use orthogonal codes.

[0138] In combination with any one of the first to twelfth possible implementations of the fourth aspect, in the thirteenth possible implementation, before the processing module determines the channel resources, it determines the first subset and the second subset according to a pre-configuration.

[0139] In conjunction with the thirteenth possible implementation manner of the fourth aspect, in the fourteenth possible implementation manner,

[0140] The pre-configuration is independently configured for different uplink subframes.

[0141] In a seventh aspect, an embodiment of the present invention provides a method for sending feedback information, including:

[0142] The user equipment UE receives downlink control information sent by the access network device;

[0143] The UE receives a data channel scheduled by the downlink control information;

[0144] The UE determines an uplink subframe for sending feedback information corresponding to the data channel, wherein the first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, the first subset includes at least two downlink subframes, and the first subset is a true subset of the second subset;

[0145] The UE determines a channel resource, wherein the channel resource is a first uplink channel resource or a second uplink channel resource, wherein the first uplink channel resource corresponds to the first subset, and the second uplink channel resource corresponds to the second subset;

[0146] The UE uses a channel format to send the feedback information on the channel resource in the uplink subframe, wherein the channel format is a p-codebook size channel format, and the UE uses the p-codebook size channel format to send the feedback information on a first uplink channel resource, or the channel format is a q-codebook size channel format, and the UE uses the q-codebook size channel format to send the feedback information on a second uplink channel resource, p and q are natural numbers, and q>p.

[0147] As in the above embodiment, the meanings of the p codebook size channel format, the q codebook size channel format, and the codebook size can refer to the description in the above embodiment. The following embodiment based on the m resource unit channel format and the n resource unit channel format is completely applicable to the scheme of the p codebook size and the q codebook size, and will not be repeated in the following text. It is only necessary to replace the m resource unit channel format in the subsequent embodiment with the q codebook size channel format, and replace the n resource unit channel format with the p codebook size channel format.

[0148] It should be noted that the p codebook size channel format and the q codebook size channel format may also occupy an equal number of resource units, that is, m may also be equal to n. The specific time-frequency resources where the equal number of resource units are located may overlap or not overlap. The overlap may be partial overlap or complete overlap. Therefore, in the subsequent embodiments, although the description is made with the m resource unit channel format and the n resource unit channel format and m is greater than n, it is not limited to this, and m may be equal to n.

[0149] Optionally, the p codebook size channel format and the q codebook size channel format occupy the same number of resource units, and the length of the orthogonal code used by the p codebook size channel format is greater than the length of the orthogonal code used by the q codebook size channel format.

[0150] For the above optional solution, the feedback information sending method provided by the embodiment of the seventh aspect includes:

[0151] The user equipment UE receives downlink control information sent by the access network device;

[0152] The UE receives a data channel scheduled by the downlink control information;

[0153] The UE determines an uplink subframe for sending feedback information corresponding to the data channel, wherein the first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, the first subset includes at least two downlink subframes, and the first subset is a true subset of the second subset;

[0154] The UE determines a channel resource, wherein the channel resource is a first uplink channel resource or a second uplink channel resource, wherein the first uplink channel resource corresponds to the first subset, and the second uplink channel resource corresponds to the second subset;

[0155] The UE uses a channel format to send the feedback information on the channel resource in the uplink subframe, wherein the channel format is an n-resource unit channel format, and the UE uses the n-resource unit channel format to send the feedback information on a first uplink channel resource, or, the channel format is an m-resource unit channel format, and the UE uses the m-resource unit channel format to send the feedback information on a second uplink channel resource, where m and n are natural numbers and m>n.

[0156] In a first possible implementation manner of the seventh aspect,

[0157] The UE receiving the data channel scheduled by the downlink control information includes: the UE receiving the data channel scheduled by the downlink control information in a downlink subframe included in the second downlink subframe set;

[0158] Wherein, in a case where the second downlink subframe set is a subset of the first subset, the channel resource determined by the UE is the first uplink channel resource; or,

[0159] In a case where the second downlink subframe set includes only downlink subframes in the second subset and not belonging to the first subset, the channel resource determined by the UE is the second uplink channel resource; or,

[0160] When the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset, the channel resource determined by the UE is the second uplink channel resource.

[0161] In a second possible implementation manner of the seventh aspect, the UE receiving the data channel scheduled by the downlink control information includes: the UE receiving the data channel scheduled by the downlink control information in a downlink subframe included in the second downlink subframe set;

[0162] in,

[0163] In a case where the second downlink subframe set is a subset of the first subset, the channel resource determined by the UE is the first uplink channel resource; or,

[0164] When the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset, the channel resource determined by the UE is the second uplink channel resource.

[0165] Among them, the above-mentioned first possible implementation method and the second possible implementation method can be used as separate schemes, and are not dependent on the embodiment of the above-mentioned fourth aspect, such as the following fifth aspect and sixth aspect.

[0166] In an eighth aspect, an embodiment of the present invention provides a method for sending feedback information, including:

[0167] The user equipment UE receives downlink control information sent by the access network device;

[0168] The UE receives the data channel scheduled by the downlink control information in a downlink subframe included in the second downlink subframe set;

[0169] The UE determines an uplink subframe for sending feedback information corresponding to the data channel, wherein the first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, the first subset includes at least two downlink subframes, and the first subset is a true subset of the second subset;

[0170] The UE determines a channel resource, wherein, in a case where the second downlink subframe set is a subset of the first subset, the channel resource determined by the UE is the first uplink channel resource; or, in a case where the second downlink subframe set includes only downlink subframes in the second subset and not belonging to the first subset, the channel resource determined by the UE is the second uplink channel resource; or, in a case where the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset, the channel resource determined by the UE is the second uplink channel resource;

[0171] The UE uses a channel format to send the feedback information on the channel resource in the uplink subframe, wherein the channel format is an n-resource unit channel format, and the UE uses the n-resource unit channel format to send the feedback information on a first uplink channel resource, or, the channel format is an m-resource unit channel format, and the UE uses the m-resource unit channel format to send the feedback information on a second uplink channel resource, where m and n are natural numbers and m>n.

[0172] In a ninth aspect, an embodiment of the present invention provides a method for sending feedback information, including:

[0173] The user equipment UE receives downlink control information sent by the access network device;

[0174] The UE receives the data channel scheduled by the downlink control information in a downlink subframe included in the second downlink subframe set;

[0175] The UE determines an uplink subframe for sending feedback information corresponding to the data channel, wherein the first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, the first subset includes at least two downlink subframes, and the first subset is a true subset of the second subset;

[0176] The UE determines a channel resource, wherein, in a case where the second downlink subframe set is a subset of the first subset, the channel resource determined by the UE is the first uplink channel resource; or, in a case where the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset, the channel resource determined by the UE is the second uplink channel resource;

[0177] The UE uses a channel format to send the feedback information on the channel resource in the uplink subframe, wherein the channel format is an n-resource unit channel format, and the UE uses the n-resource unit channel format to send the feedback information on a first uplink channel resource, or, the channel format is an m-resource unit channel format, and the UE uses the m-resource unit channel format to send the feedback information on a second uplink channel resource, where m and n are natural numbers and m>n.

[0178] A possible implementation manner of the seventh aspect is that, when the second downlink subframe set only includes downlink subframes in the second subset and not belonging to the first subset, the channel resource determined by the processing module is the third uplink channel resource; the sending module is used to send feedback information in the channel format of k resource units on the third uplink channel resource under the control of the processing module, where k is a natural number, m>k.

[0179] The third uplink channel resource may be the same as the first uplink channel resource, and in this case, k=n.

[0180] It should be noted that the following possible implementations of the seventh aspect can be used as possible implementations of the eighth and ninth aspects, and in order to save space, they are not repeated here. The eighth and ninth aspects can also be the same as the seventh aspect, and the m resource unit channel format can be replaced with a q codebook size channel format, and the n resource unit channel format can be replaced with a p codebook size channel format to become a new embodiment.

[0181] In combination with the first possible implementation manner or the second possible implementation manner of the seventh aspect, in a third possible implementation manner, the downlink control information includes resource indication information;

[0182] The UE determines a channel resource, including: the UE determines, according to the resource indication information, a channel resource for carrying the feedback information.

[0183] In conjunction with the third possible implementation manner of the seventh aspect, in a fourth possible implementation manner, before the UE determines the channel resource, the step further includes:

[0184] The UE obtains a second uplink channel resource set configured by the access network device, wherein the second uplink channel resource is an uplink channel resource in the second uplink channel resource set, partial resources of each uplink channel resource in the multiple uplink channel resources included in the second uplink channel resource set constitute a first uplink channel resource set, and the first uplink channel resource is an uplink channel resource in the first uplink channel resource set.

[0185] In combination with the fourth possible implementation manner of the seventh aspect, in a fifth possible implementation manner, the channel resource determined by the UE is the first uplink channel resource;

[0186] The UE determines a channel resource, including:

[0187] The UE determines the uplink channel resource indicated by the resource indication information from the second uplink channel resource set according to the resource indication information; and the UE determines the first uplink channel resource from the uplink channel resource indicated by the resource indication information; or,

[0188] The UE determines the first uplink channel resource from the first uplink channel resource set according to the resource indication information; or

[0189] The UE determines the first uplink channel resource according to the resource indication information, wherein the first uplink channel resource is a part of the uplink channel resources indicated by the resource indication information in the second uplink channel resource set.

[0190] In combination with the fifth possible implementation manner of the seventh aspect, in a sixth possible implementation manner, the UE determines the channel resource, including:

[0191] The UE determines, according to identification information or pre-configuration information of the UE, a first uplink channel resource among the uplink channel resources indicated by the resource indication information, wherein the uplink channel resource indicated by the resource indication information is an uplink channel resource in the second uplink channel resource set.

[0192] Optionally, the channel resource determined by the UE is the second uplink channel resource;

[0193] The UE determines a channel resource, including: determining the second uplink channel resource from the second uplink channel resource set according to the resource indication information.

[0194] In conjunction with the third possible implementation manner of the seventh aspect, in a seventh possible implementation manner, before the UE determines the channel resource, the method further includes:

[0195] The UE obtains a first uplink channel resource set and a second uplink channel set pre-configured by the access network device, wherein the first uplink channel resource is an uplink channel resource in the first uplink channel resource set, and the second uplink channel resource is an uplink channel resource in the second uplink channel resource set.

[0196] In combination with the seventh possible implementation manner of the seventh aspect, in an eighth possible implementation manner, a first state set of the resource indication information indicates the uplink channel resources in the first uplink channel resource set, and a second state set of the resource indication information indicates the uplink channel resources in the second uplink channel resource set, and the first state set and the second state set do not intersect.

[0197] In conjunction with the eighth possible implementation of the seventh aspect, in a ninth possible implementation,

[0198] The channel resource determined by the UE is the first uplink channel resource, and the UE determines the channel resource, including: the UE determines the first uplink channel resource from the first uplink channel set according to a state in a first state set of the resource indication information; or

[0199] The channel resource determined by the UE is the second uplink channel resource, and the UE determines the channel resource, including: the UE determines the second uplink channel resource for the feedback information from the second uplink channel set according to the state in the second state set of the resource indication information.

[0200] In combination with the eighth possible implementation manner of the seventh aspect, in the tenth possible implementation manner, the status of the resource indication information indicates the uplink channel resources in the first uplink channel resource set and / or the uplink channel resources in the second uplink channel resource set.

[0201] In combination with the eighth possible implementation manner or the tenth possible implementation manner of the seventh aspect, in an eleventh possible implementation manner, the channel resource determined by the UE is the first uplink channel resource, and the UE determines the channel resource, including:

[0202] The UE determines, according to the resource indication information, a third uplink channel resource indicated by the resource indication information from the first uplink channel resource set and determines a fourth uplink channel resource indicated by the resource indication information from the second uplink channel resource set; the UE determines that the second downlink subframe set is a subset of the first subset; and the UE determines that the third uplink channel resource is the first uplink channel resource; or

[0203] The UE determines that the second downlink subframe set is a subset of the first subset; and the UE determines, according to the resource indication information, the first uplink channel resource indicated by the resource indication information from the first uplink channel resource set;

[0204] or

[0205] The channel resource determined by the UE is the second uplink channel resource, and the UE determines the channel resource, including:

[0206] The UE determines, according to the resource indication information, a fifth uplink channel resource indicated by the resource indication information from the first uplink channel resource set and a sixth uplink channel resource indicated by the resource indication information from the second uplink channel resource set; the UE determines that the second downlink subframe set includes only downlink subframes in the second subset and not belonging to the first subset; and the UE determines that the sixth uplink channel resource is the second uplink channel resource; or

[0207] The UE determines that the second downlink subframe set includes only downlink subframes in the second subset and not belonging to the first subset; and the UE determines the second uplink channel resource indicated by the resource indication information from the second uplink channel resource set according to the state of the resource indication information; or

[0208] The UE determines, according to the resource indication information, a fifth uplink channel resource indicated by the resource indication information from the first uplink channel resource set and a sixth uplink channel resource indicated by the resource indication information from the second uplink channel resource set; the UE determines that the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset; and the UE determines that the sixth uplink channel resource is the second uplink channel resource; or

[0209] The UE determines that the second downlink subframe set includes the downlink subframes in the first subset and the downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset; and the UE determines the second uplink channel resource indicated by the resource indication information from the second uplink channel resource set based on the resource indication information.

[0210] It should be noted that the configuration of each parameter and the execution of each step in this implementation can refer to the description of the implementation in the above text.

[0211] In a twelfth possible implementation manner of the seventh aspect, before the UE determines the channel resource, the further comprising:

[0212] The UE obtains a first uplink channel resource set and a second uplink channel set pre-configured by the access network device, wherein the first uplink channel resource is an uplink channel resource in the first uplink channel resource set, and the second uplink channel resource is an uplink channel resource in the second uplink channel resource set;

[0213] The downlink control information includes resource indication information, the state of the resource indication information includes a first state set and a second state set, the first state set indicates uplink channel resources in the first uplink channel resource set, the second state set indicates uplink channel resources in the second uplink channel resource set, and the first state set and the second state set are disjoint;

[0214] The UE determines a channel resource, including:

[0215] In a case where the second downlink subframe set is a subset of the first subset, the UE determines, according to the resource indication information, the second uplink channel resource indicated by the resource indication information from the second uplink channel resource set.

[0216] In combination with the seventh aspect, or any one of the first to twelfth possible implementations of the seventh aspect, in a thirteenth possible implementation,

[0217] Part of the time-frequency resources of the first uplink channel resources corresponding to the n resource unit channel format overlaps with part of the time-frequency resources of the second uplink channel resources corresponding to the m resource unit channel format; or

[0218] The time-frequency resources of the first uplink channel resources corresponding to the n resource unit channel format are part of the time-frequency resources of the second uplink channel resources corresponding to the m resource unit channel format;

[0219] The n resource unit channel format and the m resource unit channel format with overlapping time-frequency resources use orthogonal codes.

[0220] In combination with the seventh aspect, or any possible implementation manner from the first to the thirteenth of the seventh aspect, in the fourteenth possible implementation manner, before the UE determines the channel resources, it also includes: the UE determines the first subset and the second subset according to a pre-configuration.

[0221] In conjunction with the fourteenth possible implementation of the seventh aspect, in a fifteenth possible implementation,

[0222] The pre-configuration is independently configured for different uplink subframes.

[0223] In a tenth aspect, an embodiment of the present invention provides a method for receiving feedback information, including:

[0224] The access network device sends downlink control information to the user equipment UE;

[0225] The access network device sends a data channel scheduled by the downlink control information to the UE;

[0226] The access network device determines an uplink subframe for receiving feedback information corresponding to the data channel, wherein the first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, the first subset includes at least two downlink subframes, and the first subset is a true subset of the second subset;

[0227] The access network device determines a channel resource, wherein the channel resource is a first uplink channel resource or a second uplink channel resource, the first uplink channel resource corresponds to the first subset, and the second uplink channel resource corresponds to the second subset;

[0228] The access network device receives the feedback information sent through a channel format on the channel resource in the uplink subframe, wherein the channel format is a p-codebook size channel format, and the UE uses the p-codebook size channel format to send the feedback information on a first uplink channel resource, or the channel format is a q-codebook size channel format, and the UE uses the q-codebook size channel format to send the feedback information on a second uplink channel resource, where p and q are natural numbers, and q>p.

[0229] As in the above embodiment, the meanings of the p codebook size channel format, the q codebook size channel format, and the codebook size can refer to the description in the above embodiment. The following embodiment based on the m resource unit channel format and the n resource unit channel format is completely applicable to the scheme of the p codebook size and the q codebook size, and will not be repeated in the following text. It is only necessary to replace the m resource unit channel format in the subsequent embodiment with the q codebook size channel format, and replace the n resource unit channel format with the p codebook size channel format.

[0230] It should be noted that the p codebook size channel format and the q codebook size channel format may also occupy an equal number of resource units, that is, m may also be equal to n. The specific time-frequency resources where the equal number of resource units are located may overlap or not overlap. The overlap may be partial overlap or complete overlap. Therefore, in the subsequent embodiments, although the description is made with the m resource unit channel format and the n resource unit channel format and m is greater than n, it is not limited to this, and m may be equal to n.

[0231] Optionally, the p codebook size channel format and the q codebook size channel format occupy the same number of resource units, and the length of the orthogonal code used by the p codebook size channel format is greater than the length of the orthogonal code used by the q codebook size channel format.

[0232] For the above optional solution, the feedback information receiving method provided by the embodiment of the tenth aspect includes:

[0233] The access network device sends downlink control information to the user equipment UE;

[0234] The access network device sends a data channel scheduled by the downlink control information to the UE;

[0235] The access network device determines an uplink subframe for receiving feedback information corresponding to the data channel, wherein the first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, the first subset includes at least two downlink subframes, and the first subset is a true subset of the second subset;

[0236] The access network device determines a channel resource, wherein the channel resource is a first uplink channel resource or a second uplink channel resource, the first uplink channel resource corresponds to the first subset, and the second uplink channel resource corresponds to the second subset;

[0237] The access network device receives the feedback information sent through a channel format on the channel resource in the uplink subframe, wherein the channel format is an n-resource unit channel format, and the first uplink channel resource carries the feedback information of the n-resource unit channel format; or, the channel format is an m-resource unit channel format, and the second uplink channel resource carries the feedback information of the m-resource unit channel format, where m and n are natural numbers and m>n.

[0238] In a first possible implementation manner of the tenth aspect, the access network device sending the data channel scheduled by the downlink control information to the UE includes: the access network device sending the data channel scheduled by the downlink control information in a downlink subframe included in a second downlink subframe set;

[0239] in,

[0240] In a case where the second downlink subframe set is a subset of the first subset, the channel resource determined by the access network device is the first uplink channel resource; or,

[0241] In a case where the second downlink subframe set includes only downlink subframes in the second subset and not belonging to the first subset, the channel resource determined by the access network device is the second uplink channel resource; or,

[0242] When the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset, the channel resource determined by the access network device is the second uplink channel resource.

[0243] In a second possible implementation manner of the tenth aspect, the access network device sending the data channel scheduled by the downlink control information to the UE includes: the access network device sending the data channel scheduled by the downlink control information in a downlink subframe included in the second downlink subframe set;

[0244] in,

[0245] In a case where the second downlink subframe set is a subset of the first subset, the channel resource determined by the access network device is the first uplink channel resource; or,

[0246] When the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset, the channel resource determined by the access network device is the second uplink channel resource.

[0247] Among them, the above-mentioned first possible implementation method and the second possible implementation method can be used as separate schemes, and are not dependent on the above-mentioned tenth aspect embodiment, such as the following eleventh aspect and twelfth aspect.

[0248] In an eleventh aspect, an embodiment of the present invention provides an access network device, including:

[0249] The access network device sends downlink control information to the user equipment UE;

[0250] The access network device sends the data channel scheduled by the downlink control information to the UE through a downlink subframe in a second downlink subframe set;

[0251] The access network device determines an uplink subframe for receiving feedback information corresponding to the data channel, wherein the first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, the first subset includes at least two downlink subframes, and the first subset is a true subset of the second subset;

[0252] The access network device determines a channel resource, wherein, in a case where the second downlink subframe set is a subset of the first subset, the channel resource determined by the access network device is the first uplink channel resource; or, in a case where the second downlink subframe set includes only downlink subframes in the second subset and not belonging to the first subset, the channel resource determined by the access network device is the second uplink channel resource; or, in a case where the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset, the channel resource determined by the access network device is the second uplink channel resource;

[0253] The access network device receives the feedback information sent through a channel format on the channel resource in the uplink subframe, wherein the channel format is an n-resource unit channel format, and the first uplink channel resource carries the feedback information of the n-resource unit channel format; or, the channel format is an m-resource unit channel format, and the second uplink channel resource carries the feedback information of the m-resource unit channel format, where m and n are natural numbers and m>n.

[0254] In a twelfth aspect, an embodiment of the present invention provides an access network device, including:

[0255] The access network device sends downlink control information to the user equipment UE;

[0256] The access network device sends the data channel scheduled by the downlink control information to the UE through a downlink subframe in a second downlink subframe set;

[0257] The access network device determines an uplink subframe for receiving feedback information corresponding to the data channel, wherein the first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, the first subset includes at least two downlink subframes, and the first subset is a true subset of the second subset;

[0258] The access network device determines a channel resource, wherein, in a case where the second downlink subframe set is a subset of the first subset, the channel resource determined by the access network device is the first uplink channel resource; or, in a case where the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset, the channel resource determined by the access network device is the second uplink channel resource;

[0259] The access network device receives the feedback information sent through a channel format on the channel resource in the uplink subframe, wherein the channel format is an n-resource unit channel format, and the first uplink channel resource carries the feedback information of the n-resource unit channel format; or, the channel format is an m-resource unit channel format, and the second uplink channel resource carries the feedback information of the m-resource unit channel format, where m and n are natural numbers and m>n.

[0260] A possible implementation manner of the twelfth aspect is that, when the second downlink subframe set only includes downlink subframes in the second subset and not belonging to the first subset, the channel resource determined by the processing module is the third uplink channel resource; the sending module is used to send feedback information in a channel format of k resource units on the third uplink channel resource under the control of the processing module, where k is a natural number, m>k.

[0261] The third uplink channel resource may be the same as the first uplink channel resource, and in this case, k=n.

[0262] It should be noted that the following possible implementations of the tenth aspect can be used as possible implementations of the eleventh and twelfth aspects, and in order to save space, they are not repeated here. The above-mentioned eleventh and twelfth aspects can also be the same as the tenth aspect, and the m resource unit channel format can be replaced with a q codebook size channel format, and the n resource unit channel format can be replaced with a p codebook size channel format to become a new embodiment.

[0263] In combination with the first possible implementation manner or the second possible implementation manner of the tenth aspect, in a third possible implementation manner, the downlink control information includes resource indication information, and the resource indication information is used to indicate the first uplink channel resource or the second uplink channel resource used to carry the feedback information.

[0264] In conjunction with the third possible implementation manner of the tenth aspect, in a fourth possible implementation manner, before the access network device determines the channel resource, the step further includes:

[0265] The access network device sends information of a second uplink channel resource set to the UE, wherein the second uplink channel resource is an uplink channel resource in the second uplink channel resource set, partial resources of each uplink channel resource among the multiple uplink channel resources in the second uplink channel resource set constitute a first uplink channel resource set, and the first uplink channel resource is an uplink channel resource in the first uplink channel resource set.

[0266] In conjunction with the fourth possible implementation of the tenth aspect, in a fifth possible implementation,

[0267] The channel resource determined by the access network device is the first uplink channel resource, the resource indication information indicates an uplink channel resource of the second uplink channel resource set that includes the first uplink channel resource, or the resource indication information indicates the first uplink channel resource in the first uplink channel resource set; or

[0268] The channel resource determined by the access network device is the second uplink channel resource, and the resource indication information indicates the second uplink channel resource in the second uplink channel resource set.

[0269] In conjunction with the fourth possible implementation of the tenth aspect, in a fifth possible implementation,

[0270] The resource indication information indicates the uplink channel resources in the second uplink channel resource set including the first uplink channel resources;

[0271] The access network device determines the channel resources, including:

[0272] The access network device determines, according to the identification information or pre-configuration information of the UE, a first uplink channel resource among the uplink channel resources indicated by the resource indication information.

[0273] In conjunction with the third possible implementation manner of the tenth aspect, in a seventh possible implementation manner, before the access network device determines the channel resource, the method further includes:

[0274] The access network device sends information of a first uplink channel resource set and information of a second uplink channel set to the UE, wherein the first uplink channel resource is an uplink channel resource in the first uplink channel resource set, and the second uplink channel resource is an uplink channel resource in the second uplink channel resource set.

[0275] In combination with the seventh possible implementation manner of the tenth aspect, in an eighth possible implementation manner, the first state set of the resource indication information indicates the uplink channel resources in the first uplink channel resource set, and the second state set of the resource indication information indicates the uplink channel resources in the second uplink channel resource set, and the first state set and the second state set do not intersect.

[0276] In combination with the seventh possible implementation manner of the tenth aspect, in a ninth possible implementation manner, the status of the resource indication information indicates the uplink channel resources in the first uplink channel resource set and / or the uplink channel resources in the second uplink channel resource set.

[0277] In combination with any possible implementation of the fourth to seventh and ninth possible implementations of the tenth aspect, in the tenth possible implementation,

[0278] The access network device receives the feedback information sent through the channel format on the channel resource in the uplink subframe, including: the access network device receives the feedback information sent through the m resource unit channel format on the second uplink channel resource indicated by the resource indication information in the uplink subframe.

[0279] In conjunction with the eleventh possible implementation of the tenth aspect, in the eleventh possible implementation,

[0280] After the access network device receives the feedback information sent in a channel format on the channel resource in the uplink subframe, the method further includes:

[0281] The access network device determines, according to the identification information or pre-configuration information of the UE, a first uplink channel resource in the second uplink channel resource, and receives, on the first uplink channel resource, the feedback information sent in the n resource unit channel format; or,

[0282] The access network device determines a first uplink channel resource in the first uplink channel resources according to the resource indication information, and receives the feedback information sent through the n resource unit channel format on the first uplink channel resource.

[0283] In combination with the tenth aspect, or any possible implementation manner of the first to eleventh aspects of the tenth aspect, in a twelfth possible implementation manner,

[0284] Part of the time-frequency resources of the first uplink channel resources corresponding to the n resource unit channel format overlaps with part of the time-frequency resources of the second uplink channel resources corresponding to the m resource unit channel format; or

[0285] The time-frequency resources of the first uplink channel resources corresponding to the n resource unit channel format are part of the time-frequency resources of the second uplink channel resources corresponding to the m resource unit channel format;

[0286] The n resource unit channel format and the m resource unit channel format with overlapping time-frequency resources use orthogonal codes.

[0287] In combination with any one of the first to twelfth possible implementation methods of the tenth aspect, in the thirteenth possible implementation method, before the access network device determines the channel resources, it also includes: the access network device determines the first subset and the second subset according to a pre-configuration.

[0288] In conjunction with the thirteenth possible implementation manner of the tenth aspect, in the fourteenth possible implementation manner,

[0289] The pre-configuration is independently configured for different uplink subframes.

[0290] Through the above-mentioned embodiment, the downlink subframes corresponding to the uplink subframes are combined and divided into at least two subsets, and the first subset is a true subset of the second subset, and corresponding uplink channel resources are configured for the two subsets. For the large subset, the feedback information is sent in a large resource format, and for the small subset, the feedback information is sent in a small resource format, thereby solving the problem of how to send feedback information when more carriers are configured, and when the number of carriers scheduled instantaneously is small, it is possible to fall back to the small resource format to send feedback information. Therefore, the embodiment of the present invention can reduce resource overhead while sending feedback information, such as ACK / NACK. BRIEF DESCRIPTION OF THE DRAWINGS

[0291] Figure 1 A schematic diagram of an application scenario of an embodiment of the present invention;

[0292] Figure 2 A schematic diagram of the structure of a user equipment according to an embodiment of the present invention;

[0293] Figure 3 This is a channel structure diagram for feeding back ACK / NACK through PUCCH format 3 according to an embodiment of the present invention;

[0294] Figure 4This is a schematic diagram of resource set configuration in implementation mode 1 of an embodiment of the present invention;

[0295] Figure 5 This is a schematic diagram of resource set configuration in implementation mode 2 of an embodiment of the present invention;

[0296] Figure 6 This is a schematic diagram of resource set configuration in implementation mode 3 of an embodiment of the present invention;

[0297] Figure 7 A schematic diagram of the structure of an access network device according to an embodiment of the present invention;

[0298] Figure 8 Schematic diagram of channel resource multiplexing of PUCCH format 3 according to an embodiment of the present invention;

[0299] Fig. 9 This is a flow chart of a method for sending feedback information according to an embodiment of the present invention;

[0300] Fig.10 This is a flow chart of a method for sending feedback information according to another embodiment of the present invention;

[0301] Fig.11 This is a flow chart of a method for sending feedback information according to another embodiment of the present invention;

[0302] Fig.12 A flow chart of a method for receiving feedback information according to an embodiment of the present invention;

[0303] Fig.13 A flow chart of a method for receiving feedback information according to another embodiment of the present invention;

[0304] Fig.14 This is a flow chart of a method for receiving feedback information according to another embodiment of the present invention. DETAILED DESCRIPTION

[0305] In the current LTE system, if the PUCCH transmission mode of PUCCH format 3 is configured, assuming that 5 FDD downlink carriers are configured, the specific data scheduling and PUCCH channel resource indication methods are as follows:

[0306] If the UE only receives the PDCCH that schedules the PDSCH on the primary carrier, the PUCCH format 1a / 1b is used to feedback ACK / NACK, and the channel resources of the PUCCH format 1a / 1b are implicitly corresponded by the control channel element (CCE) number of the PDCCH. If the UE receives at least the PDCCH that schedules the PDSCH on the secondary carrier, the PUCCH format 3 is used to feedback ACK / NACK, and the channel resources of the PUCCH format 3 are displayed and indicated by a two-bit field in the PDCCH that schedules the PDSCH on the secondary carrier. The two bits can be called the channel resource indication field. Specifically, the base station pre-allocates 4 PUCCH format 3 channel resources for the UE through radio resource control (RRC) signaling, and which of the 4 channel resources is used for each scheduling is indicated by two bits in the PDCCH that schedules the PDSCH on the secondary carrier.

[0307] The current PUCCH format 3 mode also supports ACK / NACK feedback for TDD single carrier. The specific process is: if the UE only receives the PDCCH that schedules PDSCH on the main carrier, and the downlink assignment index (DAI) field in the PDCCH indicates '1', then PUCCH format 1a / 1b is used to feedback ACK / NACK, where the channel resources of PUCCH format 1a / 1b are implicitly corresponded by the CCE number of the PDCCH; if the UE receives the PDCCH that schedules PDSCH on the main carrier, and the value indicated by the DAI field in the PDCCH is greater than '1', then PUCCH format 3 is used to feedback ACK / NACK, and the channel resources of the PUCCH format 3 are displayed and indicated by a two-bit field in the PDCCH.

[0308] The above-mentioned support for ACK / NACK transmission of PUCCH format 1a / 1b is to reduce the overhead of PUCCH format 3, because PUCCH format 3 can only code-division multiplex 5 UEs in one RB, while PUCCH format 1a / 1b can code-division multiplex up to 36 UEs in one RB, so the resource overhead of PUCCH format 3 is reduced as much as possible.

[0309] The technical solutions in the embodiments of the present invention will be described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0310] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0311] Figure 1 An application scenario of an embodiment of the present invention is shown. Figure 1 The LTE system is taken as an example for description, but the embodiment of the present invention is not limited to the LTE system.

[0312] like Figure 1 As shown in FIG. 1 , the LTE communication system includes access network equipment and user equipment. The access network equipment can configure multiple carriers for one UE to increase the data rate of the UE and implement CA; or it can configure only one carrier for the UE. The carrier here refers to Figure 1 A carrier group in a network includes an uplink carrier and a downlink carrier. For example, Figure 1 In the example, the access network device configures two carriers for user equipment 2 and one carrier for user equipment 1.

[0313] It should be understood that in the embodiments of the present invention, the user equipment may also be referred to as a terminal, terminal equipment (terminal equipment), mobile station (MS), mobile terminal (mobile terminal), etc. The user equipment may communicate with one or more core networks via a radio access network (RAN). For example, the user equipment may be a mobile phone (or a cellular phone), a computer with a mobile terminal, etc. For example, it may be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device, which exchanges language and / or data with the radio access network.

[0314] In the embodiment of the present invention, the access network device may be a base station, an enhanced base station, or a relay with a scheduling function. The base station may be an evolved Node B (eNB or e-NodeB) in an LTE system, or may be a base station in another system, for example, an evolved system of an LTE system, which is not limited in the embodiment of the present invention. The subsequent embodiments are described by taking a base station as an example, but it does not mean that the embodiment of the present invention is limited to a base station.

[0315] It should be noted that the functions performed by the user equipment and access network equipment included in the system of this embodiment are described in detail in the subsequent embodiments.

[0316] Figure 2 FIG. 1 shows a schematic structural diagram of a user equipment 100 according to an embodiment of the present invention. Figure 2 As shown, the user equipment 100 includes: a receiving module 110 , a processing module 120 , and a sending module 130 .

[0317] When the user equipment 100 feeds back ACK / NACK by sending PUCCH format 3, a DFT-S-OFDM transmission mode may be used. The channel structure for feeding back ACK / NACK by PUCCH format 3 is as follows: Figure 3 As shown, the channel structure can be implemented by the processing module 120. Specifically, the original ACK / NACK bits, such as 20 bits, are subjected to Reed Muller (RM) channel coding to generate 48 bits, the coded bits are scrambled, and the scrambled bits are modulated into 24 orthogonal phase shift keying (QPSK) symbols, which are respectively placed in two time slots of a subframe. In this way, there are 12 QPSK symbols on each time slot, and these 12 QPSK symbols are placed on 12 consecutive subcarriers on a time domain symbol of a time slot, that is, occupying 12 subcarriers on a time domain symbol in a resource block (RB). Then, for each time slot, in the time domain, an orthogonal cover code (OCC) with a length of 5 is used to spread the spectrum. A time slot occupies 5 time domain symbols in an RB. Different UEs can be code-division multiplexed through different OCCs on an RB, and the remaining two symbols are used to carry a reference signal (RS). Then, DFT precoding and inverse fast Fourier transform (IFFT) are performed on the spread signal.

[0318] In order to support ACK / NACK transmission greater than 20 bits, one method is to expand the capacity of the current PUCCH format 3, such as from one RB to multiple RBs. Specifically, taking PUCCH format 3 with 2 RBs as an example, in the above channel format, the original ACK / NACK bits are 40 bits, and it is only necessary to expand the 12 subcarriers occupied by each time slot to 24 subcarriers occupied by each time slot, without changing the time domain OCC spread spectrum. In this way, the PUCCH format 3 of the dual RB can proportionally support 40 bits of ACK / NACK feedback, and then support CA of more carriers (such as 10 carriers). The scheme of expanding to 3RBs or more RBs is similar, and only the expansion in the frequency domain is required.

[0319] However, the PUCCH format 3 of a single RB has limited multiplexing capability, so its overhead is greater than that of PUCCH format 1a / 1b. The overhead of PUCCH format 3 extended to multiple RBs will be even greater, because the multiplexing capability is the same as that of PUCCH format 3 of a single RB, but the occupied resources increase exponentially with the expansion of RBs.

[0320] Taking PUCCH format 3 with dual RB as an example, assuming that CA of 10 carriers is supported, that is, if 10 carriers are scheduled, then the PUCCH format 3 with dual RB is used. However, after 10 carriers are configured for the UE, it is necessary to consider many factors to specifically schedule several of the 10 carriers for data transmission. Not all 10 carriers will be scheduled in each subframe. Specifically, the number of scheduled carriers can be determined by the current service load. However, even if there is a scheduling requirement, the capacity of the PDCCH resource area needs to be considered. If the capacity of the PDCCH of the UE is not enough for scheduling, the data on the corresponding carrier cannot be scheduled. Therefore, even if 10 carriers are configured for the UE, only a part of the carriers may need to be scheduled to transmit data in a certain subframe. Moreover, for a carrier, in actual scheduling, not all downlink subframes are scheduled to the UE. Therefore, it is possible to consider optimizing the overhead of PUCCH format 3 to minimize the overhead.

[0321] Based on the solution of extending PUCCH format 3 of a single RB to PUCCH format 3 of at least two RBs, the embodiment of the present invention optimizes the overhead of PUCCH format 3 according to dynamically scheduled downlink subframes and / or carriers. Specifically, the following solution is provided.

[0322] The user equipment UE receives downlink control information sent by the access network device;

[0323] The UE receives a data channel scheduled by the downlink control information;

[0324] The UE determines an uplink subframe for sending feedback information corresponding to the data channel, wherein the first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, the first subset includes at least two downlink subframes, and the first subset is a true subset of the second subset;

[0325] The UE determines a channel resource, wherein the channel resource is a first uplink channel resource or a second uplink channel resource, wherein the first uplink channel resource corresponds to the first subset, and the second uplink channel resource corresponds to the second subset;

[0326] The UE uses a channel format to send the feedback information on the channel resource in the uplink subframe, wherein the channel format is a p-codebook size channel format, and the UE uses the p-codebook size channel format to send the feedback information on a first uplink channel resource, or the channel format is a q-codebook size channel format, and the UE uses the q-codebook size channel format to send the feedback information on a second uplink channel resource, p and q are natural numbers, and q>p.

[0327] Among them, the p codebook size channel format means that the channel format can support a maximum of p codebook size ACK / NACK feedback, and the q codebook size channel format means that the channel format can support a maximum of q codebook size ACK / NACK feedback. The codebook size refers to the original number of bits before the encoding of the ACK / NACK. Specifically, the p codebook size corresponds to the first subset, and the q codebook size corresponds to the second subset, that is, the p codebook size is determined by the number of downlink subframes in the first subset, and the q codebook size is determined by the number of downlink subframes in the second subset.

[0328] Optionally, the channel resources occupied by the p codebook size channel format include n resource units, and the channel resources occupied by the q codebook size channel format include m resource units, where m and n are natural numbers, and m is greater than or equal to n. In this way, the p codebook size channel format can also be regarded as an n resource unit channel format, and the q codebook size channel format can also be regarded as an m resource unit channel format. When m is greater than n, the following embodiments based on the m resource unit channel format and the n resource unit channel format are fully applicable to the p codebook size and q codebook size schemes. At this time, the descriptions in the following embodiments can directly replace the n resource unit channel format with the p codebook size channel format, and replace the m resource unit channel format with the q codebook size channel format.

[0329] In addition, the p codebook size channel format and the q codebook size channel format are also applicable to the case where m is equal to n. At this time, the descriptions in the following embodiments are also applicable to directly replacing the n resource unit channel format with the p codebook size channel format, and replacing the m resource unit channel format with the q codebook size channel format, but at this time m=n, and is not limited to m>n.

[0330] Therefore, it can be selected that in an embodiment, the p codebook size channel format and the q codebook size channel format occupy the same number of resource units, and the length of the orthogonal code used by the p codebook size channel format is greater than the length of the orthogonal code used by the q codebook size channel format.

[0331] The following embodiments are described by taking n resource unit channel format and m resource unit channel format, m>n as examples, but it should be noted that the embodiments of the present invention are not limited thereto. It can be p codebook size channel format and q codebook size channel format, q>p, m=n.

[0332] In the user equipment 100 of this embodiment, the receiving module 110 and the sending module 130 are coupled to the processing module 120 . The user equipment 100 may further include other components such as a storage module.

[0333] The receiving module 110 is used to receive downlink control information sent by the access network device, and receive a data channel scheduled by the downlink control information.

[0334] The processing module 120 is configured to determine an uplink subframe for sending feedback information corresponding to the data channel received by the receiving module 110, and determine a channel resource, wherein the first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, the first subset includes at least two downlink subframes, the first subset is a true subset of the second subset, the channel resource is a first uplink channel resource or a second uplink channel resource, the first uplink channel resource corresponds to the first subset, and the second uplink channel resource corresponds to the second subset; and

[0335] The sending module 130 is used to send the feedback information on the channel resource in the uplink subframe using a channel format under the control of the processing module 120, wherein the channel format is an n-resource unit channel format, and the first uplink channel resource carries the feedback information of the n-resource unit channel format, or the channel format is an m-resource unit channel format, and the second uplink channel resource carries the feedback information of the m-resource unit channel format, m and n are natural numbers, and m>n.

[0336] The receiving module 110 receives the downlink control information through a downlink control channel, for example, through a PDCCH, or through an enhanced PDCCH (ePDCCH). The control channel is a control channel for scheduling a data channel on a secondary carrier, and / or the control channel is a control channel for scheduling a data channel on a primary carrier.

[0337] The feedback information in the embodiment of the present invention may be ACK / NACK. Of course, it may also be other feedback information, and the feedback information may indicate whether the bearer data of the data channel is received.

[0338] The uplink subframe determined by the processing module 120 is determined according to a pre-configuration. For example, the access network device may send the uplink and downlink subframe configuration to the UE in advance, and the processing module 120 may determine the uplink subframe used to send feedback information according to the uplink and downlink subframe configuration pre-configured by the access network device. Therefore, the UE in the embodiment of the present invention further includes a storage module for storing the pre-configuration sent by the access network device to the UE.

[0339] Among them, the downlink subframes associated with the uplink subframes, that is, the ACK / NACK corresponding to the data channels scheduled in these downlink subframes, need to be fed back in the uplink subframes. These downlink subframes are determined by the timing or timing correspondence between the pre-configured downlink subframes and the uplink subframes, that is, determined according to the pre-configured uplink and downlink subframe configurations. For example, the downlink subframes associated with the uplink subframes can be determined according to Table 2.

[0340] In the embodiment of the present invention, all downlink subframes associated with the uplink subframe for feeding back ACK / NACK are referred to as the first downlink subframe set, which includes at least two subsets, namely the first subset and the second subset, and all downlink subframes are all downlink subframes configured on all carriers configured for the UE and used to feed back ACK / NACK on the uplink subframe. For example, if the UE is configured with 15 carriers by the access network device, and the same uplink and downlink subframe configuration 2 is configured for the 15 carriers (see Table 1 and Table 2 for details), then the uplink subframe is subframe 2, and all downlink subframes associated with the uplink subframe, namely the first downlink subframe set, include downlink subframes 4, 5, 6 and 8 on the 15 carriers. This embodiment is described by taking the example of the first downlink subframe set including two subsets, but is not limited to two sets. The first subset includes at least two downlink subframes, and the first subset is a true subset of the second subset, that is, the first subset includes some downlink subframes of the first downlink subframe set. The second subset may include all downlink subframes of the first downlink subframe set, or may include only some downlink subframes of the first downlink subframe set. For downlink subframes in the first downlink subframe set that do not belong to the second subset, the methods of the first subset and the second subset in the embodiment of the present invention may be referred to.

[0341] It should be noted that the embodiments of the present invention are not limited to the above two subsets, but can also be greater than two. For example, if 15 carriers are configured for the UE, the downlink subframes corresponding to these carriers can be divided into 3 subsets, or 4 subsets, and of course there can be more sets.

[0342] It should also be noted that the subset in the embodiment of the present invention can be a part of the full set or the full set. For example, in the embodiment of the present invention, if A is a subset of B, then A can include some elements of B or all elements of B. In this embodiment, if A is a proper subset of B, then A can only include some elements of B.

[0343] Further, the UE may determine the first subset and the second subset according to a pre-configuration. Taking TDD CA as an example, it is assumed here that subframes with the same subframe number on different carriers are different downlink subframes, and TDD special subframes can be classified as downlink subframes, because downlink data can be transmitted on special subframes but uplink data cannot be transmitted. For example, the first subset includes downlink subframes 4, 5, 6 and 8 of carriers 1 to 5, and the second subset includes downlink subframes 4, 5, 6 and 8 of carriers 1 to 10. It can be seen that the second subset completely contains the first subset. This embodiment may also include a third subset, specifically including downlink subframes 4, 5, 6 and 8 of carriers 1-15, that is, the third subset is all pre-configured downlink subframes associated with the ACK / NACK fed back on a certain uplink subframe configured for the UE, that is, a full set, that is, the above-mentioned first downlink subframe set; but it can be seen that the relationship between the first subset and the second subset, the relationship between the second subset and the third subset, and the relationship between the first subset and the third subset are similar in structure. Therefore, the solution of the embodiment of the present invention can be directly extended to the second subset and the third subset, as well as the first subset and the third subset. Of course, the embodiment of the present invention can also adopt other methods, which will not be repeated here.

[0344] Optionally, the UE may determine the first subset and the second subset according to a preconfigured rule. There may be multiple preconfigured rules, which are not limited in the embodiment of the present invention.

[0345] For example, the preconfigured rule may be based on a method of preconfigured rules to determine the first subset and the second subset according to at least one of the carrier sequence number and the frame sequence number and in combination with an ACK / NACK bit number threshold (such as 20 bits or 21 bits or 22 bits). In this way, the UE determines that the first subset includes downlink subframes 4, 5, 6 and 8 of carriers 1 to 5, and the second subset includes downlink subframes 4, 5, 6 and 8 of carriers 1 to 10. The selection method of the first subset is to first select the downlink subframes of carrier 1 in the order of the time domain subframe number, and then continue to select the downlink subframes of carrier 2 based on the frequency domain carrier number, until the number of downlink subframes limited by the threshold is obtained; the selection method of the second subset is similar to the first subset. For another example, assuming that the above threshold is 10, and still taking 5 carriers and each carrier having subframe configuration 2 as an example, one set division method is that the first subset includes downlink subframes 4, 5, 6 and 8 of carriers 1 to 2, and downlink subframes 4 and 5 of carrier 3. In addition to all downlink subframes of the first subset, the second subset also includes downlink subframes 6 and 8 of carrier 3, and downlink subframes 4, 5, 6 and 8 from carriers 3 to 4. At this time, different subframes on one carrier can be divided into different downlink subframe sets; it can be seen that in this example, the first subset and the second subset are selected according to the time domain subframe number first and then the frequency domain carrier number.

[0346] For another example, the preconfigured rule may be to determine that the downlink subframes within the maximum number of carriers not exceeding the threshold are a certain set according to the carrier and subframe sequence number and the threshold limit. In this rule, since different subframes on the same carrier cannot be divided into multiple incompletely intersecting sets, the number of downlink subframes in a certain set may be less than the above threshold, for example, the first subset includes downlink subframes 4, 5, 6 and 8 of carriers 1 to 2, and the second subset includes downlink subframes 4, 5, 6 and 8 of carriers 3 to 5 in addition to all downlink subframes of the first subset.

[0347] For another example, the preconfigured rule may select the first subset and the second subset in the order of frequency domain carrier number first and time domain subframe number in combination with a threshold.

[0348] It can be seen that there can be many kinds of pre-configured rules. As long as the pre-configured rules can achieve the purpose of the embodiment of the present invention, they can be used in the embodiment of the present invention, and they will not be described in detail here.

[0349] Optionally, the UE may also determine the first subset and the second subset through signaling sent by the access network device. The access network device may notify the UE of the division rule through signaling, or directly notify the UE of the first subset and the second subset. Of course, the UE may also determine the first subset and the second subset through other methods.

[0350] Further, in the embodiment of the present invention, the first subset corresponds to the first uplink channel resource, and the sending module 130 uses the n resource unit channel format to carry the feedback information of the n resource unit channel format on the first uplink channel resource; the second subset corresponds to the second uplink channel resource, and the sending module 130 uses the m resource unit channel format to carry the feedback information of the m resource unit channel format on the second uplink channel resource, where m and n are natural numbers, and m>n. Each feedback uses only one channel format to send the feedback information on the corresponding channel resource. That is, for a large subset, the feedback information is sent using a large resource format, and for a small subset, the feedback information is sent using a small resource format.

[0351] The resource units in the m-resource unit channel format and the n-resource unit channel format may include any one of a resource block (RB), a resource block pair, a sub-resource block, and a sub-resource block pair. For example, if it is an RB, it is m RBs, n RBs, where n can be 1 and m is a natural number greater than 1. A sub-resource block is a part of a resource block, and the frequency domain width of a sub-RB can be smaller than the frequency domain width of an RB, such as occupying 4 subcarriers, and occupying a time slot or subframe in the time domain; or, the time domain width of a sub-RB can be smaller than a time slot, such as occupying 3 time domain symbols, and occupying 12 subcarriers in the frequency domain, that is, the frequency domain width of an RB; or, the sub-RB occupies a smaller frequency domain width and time domain length than the current RB in both the time domain and the frequency domain. A sub-resource block pair is a pair of sub-resource blocks.

[0352] When m is greater than n, the above embodiments based on the m resource unit channel format and the n resource unit channel format, including the description of the first downlink subframe set, the first subset and the second subset, are fully applicable to the scheme of the p codebook size and the q codebook size. In addition, the p codebook size channel format and the q codebook size channel format are also applicable to the case where m is equal to n. Specifically as follows:

[0353] When m is equal to n, that is, the time-frequency resources occupied by the two channel formats have an equal number of resource units, such as both occupy 1 RB, or the time-frequency resources occupied by the two channel formats completely overlap. At this time, the reason why the ACK / NACK codebook size that can be fed back by the q codebook size channel format or the m resource unit channel format is larger than the ACK / NACK codebook size that can be fed back by the p codebook size channel format or the n resource unit channel format is that the length of the orthogonal code used by the former is smaller than the orthogonal code length of the latter, and the codebook size is increased in exchange for sacrificing the multiplexing efficiency on the same time-frequency resources.

[0354] For example, taking PUCCH format 3 as an example, it is assumed that both formats occupy the time-frequency resources of PUCCH format 3 of one RB, but the length of the time-domain orthogonal code of the p-codebook size channel format is 5, that is, the p-codebook size channel format of up to 5 UEs can be multiplexed on the RB; and the length of the time-domain orthogonal code of the q-codebook size channel format is assumed to be 2 and 3, that is, the first two ACK / NACK symbols are spread with a time-domain orthogonal code of length 2, and the last three ACK / NACK symbols are spread with a time-domain orthogonal code of length 3. Assuming that the other two symbols in the time slot are used for transmission of uplink demodulation pilots, the RB can accommodate the q codebook size channel format of 2 UEs, but the ACK / NACK codebook size supported by the q codebook size channel format is twice the ACK / NACK codebook size supported by the p codebook size channel format, because the q codebook size channel format adopts two groups of time domain orthogonal code spread spectrum, where the code length of each group of time domain orthogonal codes is smaller than the 5-length time domain orthogonal code adopted by the p codebook size channel format, and the multiplexing capacity is determined by the length of the shorter time domain orthogonal code of the two groups of time domain orthogonal codes. Regarding the length of the orthogonal code, assuming that a group of orthogonal codes is {(1, 1), (1, -1)}, the code length of the orthogonal code is 2, and there are at most 2 orthogonal codes in the orthogonal code group with a code length of 2; or assuming that another group of orthogonal codes is {(1, 1, 1, 1), (1, 1, -1, -1), (1, -1, -1, 1), (1, -1, 1, -1)}, the code length of the orthogonal code is 4, and there are at most 4 orthogonal codes in the orthogonal code group with a code length of 4.

[0355] Through the above embodiment, when more carriers are configured for the UE, the maximum number of ACK / NACK bits exceeds the carrying capacity of the current single RB-PUCCH format 3. The embodiment of the present invention combines the downlink subframes corresponding to the uplink subframes and divides them into at least two subsets, and the first subset is a true subset of the second subset, and the corresponding uplink channel resources are configured for the two subsets. For the large subset, the feedback information is sent in a large resource format, and for the small subset, the feedback information is sent in a small resource format, thereby solving the problem of how to send feedback information when more carriers are configured, and when the number of carriers scheduled instantaneously is small, it can fall back to the small resource format to send feedback information. Therefore, the embodiment of the present invention can reduce resource overhead while feeding back ACK / NACK.

[0356] The following description will be made by taking single RB-PUCCH format 3 and dual RB-PUCCH format 3 as examples, that is, n is 1 and m is 2. Of course, this embodiment can also be applied to PUCCH format 3 of more RBs. Moreover, the scheme can be extended to PUCCH formats of other resource units, such as PUCCH formats of dual RBs and 4RBs, or PUCCH formats of different numbers of sub-RBs. Therefore, the PUCCH format 3 of single RB and dual RB in this embodiment can be extended to PUCCH formats of m resource units and PUCCH formats of n resource units, where m and n are both natural numbers and m>n.

[0357] Thus, in the embodiment of the present invention, the module for channel coding can encode the original bits of feedback information in a small resource format, for example, can encode a 20-bit ACK / NACK, and can also encode the original bits of feedback information in a large resource format, for example, can encode a 40-bit ACK / NACK, or encode a 60-bit ACK / NACK. It can be implemented by one channel encoder or by multiple channel encoders. The channel encoder can be a unit in a processor, or it can be an independent channel encoder.

[0358] Further, the receiving module 110 is configured to receive the data channel scheduled by the downlink control information in the following manner: receiving the data channel scheduled by the downlink control information in a downlink subframe included in the second downlink subframe set.

[0359] In this embodiment, after receiving the downlink control information, the UE determines which downlink subframes are scheduled according to the downlink control information, wherein these scheduled downlink subframes constitute a second downlink subframe set, and the second downlink subframe set is a subset of the first downlink subframe set. The scheduled downlink subframe may be one or more, and when the scheduled downlink subframe is one, it may be a downlink subframe on the auxiliary carrier, or a downlink subframe scheduled by a control channel whose downlink assignment index (DAI) field value is greater than 1 on the main carrier, but not a downlink subframe corresponding to a PDCCH that schedules a PDSCH on the main carrier and whose DAI field indicates '1'.

[0360] Optionally, the second downlink subframe set may also be a subframe set associated with the above-mentioned uplink subframe, and the subframe set is composed of downlink subframes on all carriers activated for the current UE. The downlink subframes actually scheduled by the UE are a subset of the activated second downlink subframe set. It can be understood that the above-mentioned first downlink subframe set is a subframe set associated with the uplink subframe for sending feedback information, and the first downlink subframe set is configured to the UE through radio resource control (RRC) signaling; the activated second downlink subframe set is a subset of the first downlink subframe set, and is configured to the UE through media access control (MAC) signaling; the downlink subframe actually scheduled by the UE is the downlink subframe in the second downlink subframe set. However, the embodiments of the present invention are all described assuming that the second downlink subframe set is the downlink subframe set actually scheduled, but can also be applied to the case where the second downlink subframe set is the above-mentioned activated downlink subframe set.

[0361] In this embodiment, although 15 carriers are configured for the UE, and a maximum of 60 bits of ACK / NACK need to be fed back in uplink subframe 2, the number of carriers or downlink subframes scheduled for the UE in a certain subframe may be less than the above maximum value, such as 60 subframes of 15 carriers in this embodiment. The number of carriers and subframes scheduled for the UE is specifically related to multiple factors such as the instantaneous service load of the UE and the control channel capacity.

[0362] After determining the uplink subframe, the processing module 120 further determines the channel resources. When the relationship between the second downlink subframe set and the first subset, the second subset and the first downlink subframe set is different, the determined channel resources are different and the used PUCCH formats may also be different.

[0363] When m is greater than n, the above embodiments based on the m resource unit channel format and the n resource unit channel format, including the description of the second downlink subframe set, are fully applicable to the schemes of the p codebook size and the q codebook size. In addition, the p codebook size channel format and the q codebook size channel format are also applicable to the case where m is equal to n.

[0364] Further, the downlink control information includes resource indication information;

[0365] The processing module 120 is configured to determine the channel resource in the following manner: determine the channel resource for carrying the feedback information according to the resource indication information.

[0366] It should be noted that the DAI in the downlink control information including the resource indication information is not 1, for example, the DAI is greater than 1. Alternatively, for the FDD CA system, since there is no DAI field in the downlink control information, the downlink control information for scheduling the main carrier does not have the above resource indication information, and only the downlink control information for scheduling the auxiliary carrier has the above resource indication information.

[0367] Optionally, the resource indication information may be an explicit bit in the downlink control information, for example, at least one bit in the control channel is used as the resource indication information, and different states of the at least one bit indicate the use of different PUCCH channel resources. Optionally, the resource indication information may also be an implicit indication method, for example, different scrambling codes on the control channel indicate different channel resources. Specifically, the resource indication information may be an ACK / NACK resource indicator (ACK / NACKresource indicator, ARI).

[0368] When m is greater than n, the following embodiments based on the m resource unit channel format and the n resource unit channel format, including the resource indication information for the channel resource indication method, are fully applicable to the p codebook size and q codebook size schemes. In addition, the p codebook size channel format and the q codebook size channel format are also applicable to the case where m is equal to n.

[0369] For the channel resources in the embodiments of the present invention, the following two solutions are specifically provided.

[0370] Solution 1

[0371] In the case where the second downlink subframe set is a subset of the first subset, the channel resource determined by the processing module 120 is the first uplink channel resource; or,

[0372] In the case where the second downlink subframe set only includes downlink subframes in the second subset and not belonging to the first subset, the channel resource determined by the processing module 120 is the second uplink channel resource; or,

[0373] When the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset, the channel resource determined by the processing module 120 is the second uplink channel resource.

[0374] In this embodiment, the n resource unit channel format is a single RB-PUCCH format, and the m resource unit channel format is a double RB-PUCCH format. The first uplink channel resource corresponds to the single RB-PUCCH format, and the second uplink channel resource corresponds to the double RB-PUCCH format.

[0375] In this solution, in the case where the second downlink subframe set is a subset of the first subset (hereinafter referred to as case 1), the channel resource determined by the processing module 120 is the first uplink channel resource. For example, the second downlink subframe set includes subframes 4, 5, 6 and 8 of carrier 1, subframes 4, 5 and 6 of carrier 2, and subframes 4 and 5 of carrier 3, where carrier 1 is the main carrier. In this embodiment, it is assumed that the first subset is composed of downlink subframes 4, 5, 6 and 8 of carriers 1-5, so the above-mentioned second downlink subframe set is a subset of the first subset. In this case, the first uplink channel resource corresponding to the first subset is used in this embodiment. That is, the feedback information is sent in a small resource format.

[0376] In the case where the second downlink subframe set only includes downlink subframes in the second subset and not belonging to the first subset (hereinafter referred to as case 2), the channel resource determined by the processing module 120 is the second uplink channel resource. For example, the first subset is composed of downlink subframes 4, 5, 6 and 8 of carriers 1-5, and the second subset is composed of downlink subframes 4, 5, 6 and 8 of carriers 1-10. The second downlink subframe set only includes subframes 4, 5, 6 and 8 of carrier 6, subframes 4, 5 and 6 of carrier 7, and subframes 4 and 5 of carrier 8. That is, the second downlink subframe set only includes downlink subframes in the second subset and not belonging to the first subset. In this case, the second uplink channel resource corresponding to the second subset is used in this embodiment. That is, the feedback information is sent in a large resource format.

[0377] In the case where the second downlink subframe set includes the downlink subframes in the first subset and the downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset (hereinafter referred to as case 3), the channel resources determined by the processing module 120 are the second uplink channel resources. For example, the first subset is composed of downlink subframes 4, 5, 6 and 8 of carriers 1-5, and the second subset is composed of downlink subframes 4, 5, 6 and 8 of carriers 1-10. The second downlink subframe set includes subframes 4, 5, 6 and 8 of carrier 1, subframes 4, 5 and 6 of carrier 3, and subframes 4 and 5 of carrier 6. That is, the second downlink subframe set includes the downlink subframes in the first subset and the downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset. In this case, the second uplink channel resources corresponding to the second subset are also used in this embodiment. That is, feedback information is sent in a large resource format.

[0378] In the subsequent description, the n resource unit channel format is a single RB-PUCCH format, and the m resource unit channel format is a double RB-PUCCH format. The first uplink channel resource corresponds to the single RB-PUCCH format, and the second uplink channel resource corresponds to the double RB-PUCCH format.

[0379] Further, when the processing module 120 determines the channel resource for carrying the feedback information according to the resource indication information, it is selected from the resource set pre-configured by the access network device for the UE. Further, the access network device pre-configures the corresponding relationship between the state of the resource indication information and the channel resources in the resource set for the UE. When the processing module 120 determines the channel resource for carrying the feedback information according to the resource indication information, it is selected from the resource set pre-configured by the access network device for the UE according to the state of the resource indication information. Among them, the resource set pre-configured by the access network device for the UE has the following three implementation modes.

[0380] The first implementation method:

[0381] The access network device pre-configures a second uplink channel resource set for the UE, and the processing module 120 is further used to obtain the second uplink channel resource set configured by the access network device before determining the channel resource. The second uplink channel resource is an uplink channel resource in the second uplink channel resource set, and part of each uplink channel resource in the multiple uplink channel resources included in the second uplink channel resource set constitutes a first uplink channel resource set, and the first uplink channel resource is an uplink channel resource in the first uplink channel resource set.

[0382] The channel resources of the m-resource unit channel format in this scheme include their corresponding fallback channel resources of the n-resource unit channel format on the time-frequency resources, so that there is no need to separately reserve channel resources of the n-resource unit channel format and the m-resource unit channel format that are orthogonal on the time-frequency resources, so that the base station does not need to perform blind detection on the channel resources of the n-resource unit channel format and the m-resource unit channel format that are orthogonal on the time-frequency resources, thereby saving resource overhead of uplink control channels, such as PUCCH.

[0383] like Figure 4 As shown, the second uplink channel resource set pre-configured by the access network device for the UE is Figure 4 There are four major resources in Figure 4It should be noted that the four resources in this embodiment are only examples and are not intended to limit the scope of the embodiment of the present invention. Those skilled in the art should understand that the access network device can configure more or fewer resources as required. A portion of each element in the second uplink channel resource set constitutes the first resource set. For example, Figure 4 The first uplink channel resource set is composed of part of the resources of the four dual RBs, that is, one RB in each of the four dual RBs. The second uplink channel resource is selected from the second uplink channel resource set. That is, the second uplink channel resource is Figure 4 The first uplink channel resource is selected from the first uplink channel resource set. For example, the first uplink channel resource is Figure 4 A single RB channel resource of one of the dual RB channel resources included in may be, for example, Figure 4 The channel resources of the upper half RB of the second double RB channel resource.

[0384] In this case, different states of the resource indication information may indicate different channel resources in the second uplink channel resource set. Figure 4 As shown, 00 indicates the first dual RB in the second uplink channel resource set, 01 indicates the second dual RB, 10 indicates the third dual RB, and 11 indicates the fourth dual RB.

[0385] In the above situation 2 or 3, the processing module 120 is specifically configured to determine the second uplink channel resource from the second uplink channel resource set according to the channel resource indication. For example, the channel resource indication is 10, and the processing module 120 determines the third dual RB from the second uplink channel resource set as the second uplink channel resource.

[0386] In the above situation 1, the processing module 120 is specifically configured to determine the first uplink channel resource in the first uplink channel resource set according to the channel resource indication, wherein the first uplink channel resource is a part of the uplink channel resources indicated by the channel resource, and the uplink channel resources are included in the second uplink channel resource set. Alternatively, the processing module 120 is specifically configured to determine the first uplink channel resource according to the resource indication information, wherein the first uplink channel resource is a part of the uplink channel resources indicated by the resource indication information in the second uplink channel resource set. As for which part of the uplink channel resources indicated by the resource indication information the first uplink channel resource is, it can be directly determined according to the UE identifier, pre-configuration information or default settings.

[0387] Optionally, which part of the uplink channel resources indicated by the channel resources is used by the processing module 120 can be determined according to a default setting, for example, the upper RB is used by default, or the lower RB is used by default. Alternatively, which part of the uplink channel resources indicated by the channel resources is used by the processing module 120 can be determined according to the identification information or pre-configuration information of the user equipment. For example, the pre-configuration information can be the upper half or lower half of the uplink channel resources in the above-mentioned uplink channel resource set pre-configured through RRC signaling, or pre-configured indication information used to indicate the upper half or lower half of the uplink channel resources in the above-mentioned uplink channel resource set as the first uplink channel resource; the processing module 120 can determine the above-mentioned upper half or lower half of the resources as the above-mentioned first uplink channel resource based on the pre-configuration information. For another example, when the processing module 120 determines the first uplink channel resource according to the identification information of the user equipment, if the identification information of the user equipment is an odd number, the processing module 120 determines to use the upper half of the uplink channel resource indicated by the channel resource as the first uplink channel resource; if the identification information of the user equipment is an even number, the processing module 120 determines to use the lower half of the uplink channel resource indicated by the channel resource as the first uplink channel resource. Vice versa. Of course, the processing module 120 can also determine according to other methods.

[0388] This implementation is further illustrated by the following example. In this embodiment, 2 bits of resource indication information are taken as an example, and the channel format is PUCCH format 3. The UE needs to be pre-configured with the parsing conditions of the 4 states of the 2 bits, for example, the 4 states {00, 01, 10, 11} of the 2 bits are obtained in advance by receiving RRC dedicated signaling, which are {dual RB PUCCH format 3 channel resource 1, dual RB PUCCH format 3 channel resource 2, dual RB PUCCH format 3 channel resource 3, dual RB PUCCH format 3 channel resource 4}, that is, Figure 4 The channel resources of 4 double RBs.

[0389] Based on this pre-configuration information, if the UE receives data scheduled in a downlink subframe outside the first subset (such as case 2 or case 3 above), in this embodiment, the processing unit 120 will use the channel resource 2 of the dual RB PUCCH format 3 indicated by the current state 01 to feedback ACK / NACK.

[0390] If the second downlink subframe set is a subset of the first subset (such as the above case 1), and the 2 bits received by the UE at this time are in state 01, then the UE uses the single RB PUCCH format 3 channel resource in the dual RB PUCCH format 3 channel resource indicated by the state 01 to feedback ACK / NACK, as shown in the following example. Figure 4As shown. Which part of the single RB PUCCH format 3 channel resources in the dual RB PUCCH format 3 channel resources to be used can be determined according to the UE identification information of the UE. The identification information can be the cell radio network temporary identifier (C-RNTI) of the UE. The specific determination method can be a modulo operation, for example, according to C-RNTI mod 2=0 or 1, it can be determined which part of the single RB PUCCH format 3 channel resources to use; or directly use a pre-configured part of the single RB PUCCH format 3 channel resources in the dual RB PUCCH format 3 channel resources, such as pre-configuration through RRC dedicated signaling. The above-mentioned determination method of single RB PUCCH format 3 can enable the base station to let two UEs respectively use different parts of the single RB PUCCH format 3 channel resources in a dual RB PUCCH format 3 channel resource, thereby improving the efficiency of resource utilization.

[0391] The second implementation method:

[0392] The access network device pre-configures two uplink channel resource sets for the UE, namely a first uplink channel resource set and a second uplink channel resource set, and the processing module 120 is further used to obtain the first uplink channel resource set and the second uplink channel resource set pre-configured by the access network device before determining the channel resources. The first uplink channel resource is an uplink channel resource in the first uplink channel resource set, and the second uplink channel resource is an uplink channel resource in the second uplink channel resource set.

[0393] like Figure 5 As shown, the first uplink channel resource set includes Figure 5 The second uplink channel resource set includes two single RB channel resources, single RB1 and single RB2. Figure 5 In the case of such resource set configuration, the resource indication information state can be divided into two sets, namely, a first state set and a second state set. The first state set indicates the uplink channel resources in the first uplink channel resource set, and the second state set of the resource indication information indicates the uplink channel resources in the second uplink channel resource set. The first state set and the second state set are disjoint. Figure 5 As shown in the example, the first state set includes 00 and 01, respectively indicating a single RB1 and a single RB2 in the first uplink channel resource set; the second state set includes 10 and 11, respectively indicating a double RB1 and a double RB2 in the second uplink channel resource set.

[0394] Further, the correspondence between the states in the first state set and the channel resources in the first uplink channel resource set may be pre-configured to the UE by the access network device. Similarly, the correspondence between the states in the second state set and the channel resources in the second uplink channel resource set may also be pre-configured to the UE by the access network device. The access network device may configure the two correspondences to the UE at the same time or separately. Specifically, the access network device may configure the above two correspondences to the UE through radio resource control (RRC) dedicated signaling.

[0395] In the above situation 1, when the channel resource determined by the processing module 120 is the first uplink channel resource and the state of the resource indication information is a state in a first state set, the processing module 120 is configured to determine the channel resource in the following manner: determining the first uplink channel resource from the first uplink channel set according to the state in the first state set of the resource indication information; or

[0396] In the above situation 2 or 3, when the channel resource determined by the processing module 120 is the second uplink channel resource and the state of the resource indication information is a state in the second state set, the processing module 120 is configured to determine the channel resource as follows: determine the second uplink channel resource from the second uplink channel set according to the state in the second state set of the resource indication information.

[0397] The following combination Figure 5 The example shown further illustrates the present implementation. In the present embodiment, taking 2 bits of resource indication information as an example, the UE needs to be pre-configured with the parsing of the 4 states of the 2 bits, for example, the UE needs to pre-acquire the 4 states {00, 01, 10, 11} of the 2 bits by receiving RRC-specific signaling, which are respectively {single RB PUCCH format 3 channel resource 1, single RB PUCCH format 3 channel resource 2, dual RB PUCCH format 3 channel resource 1, dual RB PUCCH format 3 channel resource 2}. Based on this pre-configuration information, if the 2 bits received by the UE at this time are in state 01, then it is determined to use the single RB PUCCH format to send ACK / NACK in the single RB PUCCH format 3 channel resource 2, such as Figure 5 shown.

[0398] In this implementation manner, when the second downlink subframe set is a subset of the first subset, if the channel resource indicated by the resource indication information is a downlink channel resource corresponding to the m resource unit channel format, the processing unit 120 still determines to use the second downlink channel resource to send feedback information. Specifically, even if the second downlink subframe set only includes downlink subframes in the first subset at this time, if the state of the two bits of the resource indication information received by the UE is 10, it means indicating the dual RB PUCCH channel resource 1 to feedback ACK / NACK, so the UE determines to use the dual RB PUCCH format to send ACK / NACK in the dual RB PUCCH format 3 channel resource 1. At this time, the UE will also find that it has missed the PDCCH that schedules downlink subframes outside the first subset, because if there is no missed detection, the base station will instruct the UE to use the single RB PUCCH channel resource, considering that the second downlink subframe set only includes downlink subframes in the first subset. On the contrary, if the UE finds that the second downlink subframe set is a subset of the first subset, it uses single RB PUCCH format 3. Once missed detection, the base station will expect the UE to use dual RB-PUCCH format 3 to feedback ACK / NACK, but the UE actually uses single RB-PUCCH format 3 to feedback ACK / NACK, so there will be a problem of inconsistent understanding with the base station, which will cause the base station to decode ACK / NACK unsuccessfully; if the base station allocates channel resources that it believes are not allocated to the UE to other UEs, and the current UE uses the channel resources of the single RB PUCCH format 3 that have been allocated to other UEs to feedback ACK / NACK, it will also cause interference to the PUCCH format 3 of other UEs. Therefore, in this embodiment, the different states of the resource indication information are used to indicate the use of single RB-PUCCH format 3 or dual RB-PUCCH format 3, so that as long as the UE determines that the resource indication information indicates the use of dual RB-PUCCH format 3, the UE uses dual RB-PUCCH format 3 to feedback ACK / NACK, thereby solving the above-mentioned PUCCH channel resource ambiguity problem caused by missed detection of the control channel.

[0399] The third implementation method:

[0400] This implementation is similar to the second implementation, and the access network device pre-configures two uplink channel resource sets for the UE, namely, the first uplink channel resource set and the second uplink channel resource set. Figure 6 As shown, the first uplink channel resource set includes Figure 6 The second uplink channel resource set includes four single RB channel resources, single RB1, single RB2, single RB3 and single RB4 channel resources. Figure 6The four dual RB channel resources in the dual RB are dual RB1, dual RB2, dual RB3 and dual RB4. In this resource set configuration, the four states of the resource indication information indicate the channel resources corresponding to the first uplink channel resource set and / or the second uplink channel resource set.

[0401] Thus, the processing module 120 is indeed configured to determine channel resources in the following two ways.

[0402] Method 1:

[0403] The processing module 120 determines, according to the resource indication information, a third uplink channel resource indicated by the resource indication information from the first uplink channel resource set and a fourth uplink channel resource indicated by the resource indication information from the second uplink channel resource set; determines that the second downlink subframe set is a subset of the first subset; and determines that the third uplink channel resource is the first uplink channel resource; or

[0404] The processing module 120 determines, according to the resource indication information, a fifth uplink channel resource indicated by the resource indication information from the first uplink channel resource set and a sixth uplink channel resource indicated by the resource indication information from the second uplink channel resource set; determines that the second downlink subframe set includes only downlink subframes in the second subset and not belonging to the first subset; and determines that the sixth uplink channel resource is the second uplink channel resource; or

[0405] The processing module 120 determines, based on the resource indication information, the fifth uplink channel resource indicated by the resource indication information from the first uplink channel resource set and the sixth uplink channel resource indicated by the resource indication information from the second uplink channel resource set; determines that the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset; and determines that the sixth uplink channel resource is the second uplink channel resource.

[0406] Method 2:

[0407] The processing module 120 determines that the second downlink subframe set is a subset of the first subset; and determines the first uplink channel resource indicated by the resource indication information from the first uplink channel resource set according to the resource indication information; or

[0408] The processing module 120 determines that the second downlink subframe set only includes downlink subframes in the second subset and not belonging to the first subset; and determines the second uplink channel resource indicated by the resource indication information from the second uplink channel resource set according to the state of the resource indication information; or

[0409] The processing module 120 determines that the second downlink subframe set includes the downlink subframes in the first subset and the downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset; and determines the second uplink channel resource indicated by the resource indication information from the second uplink channel resource set according to the resource indication information.

[0410] Specifically, in this implementation, if the second downlink subframe set includes only downlink subframes in the first subset, the UE can determine to use a single RB PUCCH channel resource. However, which single RB PUCCH channel resource to use needs to be determined by the 2-bit state of the resource indication information; or, the UE first determines a single RB PUCCH channel resource from the first channel resource set and a dual RB PUCCH channel resource from the second channel resource set according to the state of the resource indication information, and which of the two channel resources is finally used can be determined by the fact that the second downlink subframe set includes only downlink subframes in the first subset to use the above-mentioned single RB PUCCH channel resource to send ACK / NACK.

[0411] In this solution, the UE also needs to be pre-configured with the corresponding relationship between the state of the resource indication information and the channel resource set. For example, the four states {00, 01, 10, 11} of the two bits are obtained in advance by receiving RRC-specific signaling, which are a single RBPUCCH channel resource set {single RB PUCCH format 3 channel resource 1, single RB PUCCH format 3 channel resource 2, single RBPUCCH format 3 channel resource 3, single RB PUCCH format 3 channel resource 4} or a dual RB PUCCH channel resource set {dual RB PUCCH format 3 channel resource 1, dual RB PUCCH format 3 channel resource 2, dual RB PUCCH format 3 channel resource 3, dual RBPUCCH format 3 channel resource 4}. Specifically, Figure 6 shown.

[0412] When m is greater than n, the above-mentioned embodiments based on the m resource unit channel format and the n resource unit channel format, including the scheme 1 in the indication method of the resource indication information, are completely applicable to the schemes of the p codebook size and the q codebook size. In addition, the p codebook size channel format and the q codebook size channel format are also applicable to the case where m is equal to n. That is to say, the scheme of the codebook size channel format is an upper scheme of the resource unit channel format.

[0413] Solution 2

[0414] In the case where the second downlink subframe set is a subset of the first subset, the channel resource determined by the processing module 120 is the first uplink channel resource; or,

[0415] When the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset, the channel resource determined by the processing module 120 is the second uplink channel resource.

[0416] In this solution, the difference from Solution 1 is that, in the case where the second downlink subframe set only includes downlink subframes in the second subset and not belonging to the first subset (i.e., Case 2), the channel resource determined by the processing module 120 is the first uplink channel resource. For example, the first subset consists of downlink subframes 4, 5, 6 and 8 of carriers 1-5, and the second subset consists of downlink subframes 4, 5, 6 and 8 of carriers 1-10. The second downlink subframe set only includes subframes 4, 5, 6 and 8 of carrier 6, subframes 4, 5 and 6 of carrier 7, and subframes 4 and 5 of carrier 8. In this case, the first subset may not be generally regarded as a first subset. The first subset consists of downlink subframes 4, 5, 6 and 8 of carriers 6-10. In this embodiment, feedback information is also sent in a fallback resource format for Case 2. Of course, it should be noted that the first subset consisting of downlink subframes 4, 5, 6 and 8 of carriers 1-5 and the subset consisting of downlink subframes 4, 5, 6 and 8 of carriers 6-10 can be configured with different channel resource sets or the same channel resource sets, but both are channel resource sets corresponding to the small channel format.

[0417] In Scheme 2, the resource set configuration method and the channel resource determination method in various methods can refer to the description in Scheme 1. In order to save space, this article will not go into details. It should be noted that, in the case where the second downlink subframe set is a subset of the first subset, the channel resources determined by the processing module 120 are the first uplink channel resources, which can refer to the description of Situation 1 of the above Scheme 1. In the case where the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset, the descriptions of Situations 2 and 3 can be referred to.

[0418] Optionally, when the second downlink subframe set includes only downlink subframes in the second subset and not in the first subset, the UE determines the first uplink channel resource, i.e., sends ACK / NACK on the first uplink channel resource using single RB PUCCH format 3. For example, the second downlink subframe set includes subframes 4, 5, 6, and 8 of carrier 6, subframes 4, 5, and 6 of carrier 7, and subframes 4 and 5 of carrier 8. It can be seen that the downlink subframes in the second downlink subframe set are all subframes on the auxiliary carrier. In this case, the solution is similar to the first case.

[0419] In this embodiment, before the UE receives the scheduled data channel in the second downlink subframe set, it also includes: the UE determines the first uplink channel resource set corresponding to the first subset and the second uplink channel resource set excluding the first subset in the second subset, the first uplink channel resource set includes at least one PUCCH channel resource of single RB-PUCCH format 3, and the second uplink channel resource set includes at least one PUCCH channel resource of single RB-PUCCH format 3. Preferably, the single RB-PUCCH format 3 channel resources included in the first uplink channel resource set and the single RB-PUCCH format 3 channel resources included in the second uplink channel resource set can be completely different or partially the same, that is, independent configuration. Of course, in this embodiment, the independent configuration also includes: the PUCCH channel resources included in the first uplink channel resource set and the single RB-PUCCH format 3 channel resources included in the second uplink channel resource set can also be the same. Optionally, the UE can obtain the above-mentioned first uplink channel resource set and the second uplink channel resource set by receiving RRC signaling sent by the base station.

[0420] For example, the first uplink channel resource set and the second uplink channel resource set both include two channel resources of single RB-PUCCH format 3, namely {channel 11, channel 12} and {channel 21, channel 22}. The two states of the two bits of the above resource indication information in the control channel for scheduling the downlink subframes actually scheduled in the first subset are used to indicate channel 11 and channel 12 respectively, and the two states of the two bits of the above resource indication information in the control channel for scheduling the downlink subframes actually scheduled in the second subset except the first subset are used to indicate channel 21 and channel 22 respectively. Here, {channel 11, channel 12} and {channel 21, channel 22} are not exactly the same, that is, they are either completely different, that is, completely independently configured; or they are partially the same, for example, channel 11 and channel 21 are the same channel, but channel 12 and channel 22 are different. In this way, scheduling flexibility can be brought when multiple UEs statistically multiplex PUCCH format 3 channel resources. For example, for the first subset, since {channel 11, channel 12} are all occupied by other UEs, {channel 11, channel 12} cannot be used to feedback the ACK / NACK corresponding to the downlink subframes in the first subset, resulting in the inability to schedule the subframes in the first subset. However, since {channel 21, channel 22} and {channel 11, channel 12} are not exactly the same, and {channel 21, channel 22} may not be occupied by other UEs, that is, the channels in the {channel 21, channel 22} set are available, so the subframes in the second subset except the first subset can be scheduled at this time. For the dual RB PUCCH channel resources 13 and 14 of the other two state indications of the resource indication information corresponding to the first subset, and for the dual RB PUCCH channel resources 23 and 24 of the other two state indications of the resource indication information corresponding to the first subset in the second subset, they must be exactly the same, that is, the dual RB PUCCH format 3 channel resources 13 and 14 are the same, and 23 and 24 are the same.

[0421] The ACK / NACK codebook and codebook size in this case are similar to those in the first case. The UE determines the ACK / NACK codebook size corresponding to the part of the second subset except the first subset, and encodes the ACK / NACK codebook according to the codebook size.

[0422] Optionally, for the resource configuration method in the above-mentioned implementation mode 2, in order to prevent UE from missing detection, when the second downlink subframe set only includes downlink subframes in the second subset and not belonging to the first subset, if the resource indication information indicates a channel resource in the m resource unit format, the processing module 120 determines the second uplink channel resource, that is, uses the m resource unit format, such as dual RB PUCCH format 3, and sends feedback information on the second uplink channel resource. For details, refer to the description of the above-mentioned implementation mode 2.

[0423] For the ACK / NACK codebook and codebook size in this case, similar to the above-mentioned solution 2, the UE determines the ACK / NACK codebook size corresponding to the second subset, and encodes the ACK / NACK codebook according to the codebook size.

[0424] Moreover, this embodiment (including all implementation modes) is described by taking two subsets as an example, but for the case of multiple subsets, the solution of this embodiment can still be adopted, except that different subsets are respectively configured with corresponding uplink channel resource sets.

[0425] Optionally, based on the above embodiments (including all implementation modes), in one embodiment, part of the time-frequency resources of the first uplink channel resources corresponding to the n resource unit channel format overlap with part of the time-frequency resources of the second uplink channel resources corresponding to the m resource unit channel format; or, the time-frequency resources of the first uplink channel resources corresponding to the n resource unit channel format are part of the time-frequency resources of the second uplink channel resources corresponding to the m resource unit channel format; wherein the n resource unit channel format and the m resource unit channel format with overlapping time-frequency resources are distinguished using orthogonal codes, which can save PUCCH resource overhead, that is, there is no need to reserve the n resource unit channel format and the m resource unit channel format with time-frequency orthogonality respectively. Specifically, the UE determines the ACK / NACK codebook size corresponding to the first subset, and encodes the ACK / NACK codebook according to the codebook size. For example, if the resource indication information indicates the use of a PUCCH channel resource of a single RB-PUCCH format 3 for ACK / NACK feedback, then the PUCCH channel is used to feedback the ACK / NACK corresponding to the downlink subframe actually scheduled in the second downlink subframe set, but the original number of bits before coding of the ACK / NACK to be fed back, that is, the codebook size, is determined based on all downlink subframes in the first subset. In this example, the number of all downlink subframes included in the first subset is 20, and the number of downlink subframes in the second downlink subframe set actually scheduled is 9. Then, when feeding back ACK / NACK, the original number of bits before coding, that is, the ACK / NACK codebook, needs to be determined according to the maximum 20 bits, that is, the codebook size at this time, and the ACK / NACK bits are arranged according to the carrier and subframe sequence number, wherein the ACK / NACK position corresponding to the downlink subframe that is not actually scheduled can be filled with zeros to occupy the position. In this example, single codeword scheduling is assumed, that is, one downlink subframe corresponds to one ACK / NACK bit; if dual codeword scheduling is used, one downlink subframe corresponds to two ACK / NACK bits, but the two ACK / NACKs corresponding to one subframe can be spatially bound, that is, a logical AND operation is performed to compress the two-bit ACK / NACK into one bit.

[0426] In all embodiments of the present invention, the control channel carrying the resource indication information is a control channel for scheduling the first downlink subframe in the second downlink subframe set, and the first downlink subframe is a subframe on the auxiliary carrier, or a downlink subframe scheduled by a control channel whose downlink assignment index (DAI) field value is greater than 1 on the main carrier. Specifically, the scheduling order of subframes on a carrier determines the order of DAI values ​​in the control channel from small to large, for example, the DAI values ​​in the four control channels for scheduling subframes 4, 5, 6 and 8 on the main carrier are 1, 2, 3 and 4 respectively; then the above-mentioned first downlink subframe includes subframes 5, 6 and 8 of carrier 1, subframes 4, 5 and 6 of carrier 2, and subframes 4 and 5 of carrier 3, that is, only subframe 4 scheduled by the control channel with a DAI value of 1 on the main carrier is excluded. In addition, the states of the resource indication information in these control channels for scheduling the first downlink subframes must be the same, for example, they must all be the above-mentioned state 01, so that the UE will not be unable to determine which PUCCH format 3 channel resource is due to different states indicated by different resource indication information.

[0427] When m is greater than n, the above-mentioned embodiments based on the m resource unit channel format and the n resource unit channel format, including the scheme 2 in the indication method of the resource indication information, are completely applicable to the schemes of the p codebook size and the q codebook size. In addition, the p codebook size channel format and the q codebook size channel format are also applicable to the case where m is equal to n. That is to say, the scheme of the codebook size channel format is an upper scheme of the resource unit channel format.

[0428] like Figure 7 As shown, another embodiment of the present invention provides an access network device 700, including a receiving module 710, a processing module 720 and a sending module 730.

[0429] The sending module 710 is used to send downlink control information to the UE under the control of the processing module 720, and send a data channel scheduled by the downlink control information to the UE under the control of the processing module 720;

[0430] The processing module 720 is configured to control the sending module 710 to send downlink control information to the UE, control the sending module 710 to send a data channel scheduled by the downlink control information to the UE, determine an uplink subframe for receiving feedback information corresponding to the data channel, and determine a channel resource, wherein the second downlink subframe set associated with the uplink subframe includes a first subset and a second subset, the first subset includes at least two downlink subframes, the first subset is a true subset of the second subset, the channel resource is a first uplink channel resource or a second uplink channel resource, the first uplink channel resource corresponds to the first subset, and the second uplink channel resource corresponds to the second subset; and

[0431] The receiving module 730 is used to receive the feedback information sent through the channel format on the channel resource in the uplink subframe determined by the processing module 720, wherein the channel format is an n-resource unit channel format, and the first uplink channel resource carries the feedback information of the n-resource unit channel format; or, the channel format is an m-resource unit channel format, and the second uplink channel resource carries the feedback information of the m-resource unit channel format, where m and n are natural numbers and m>n.

[0432] The present invention also provides an embodiment:

[0433] The access network device sends downlink control information to the user equipment UE;

[0434] The access network device sends a data channel scheduled by the downlink control information to the UE;

[0435] The access network device determines an uplink subframe for receiving feedback information corresponding to the data channel, wherein the first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, the first subset includes at least two downlink subframes, and the first subset is a true subset of the second subset;

[0436] The access network device determines a channel resource, wherein the channel resource is a first uplink channel resource or a second uplink channel resource, the first uplink channel resource corresponds to the first subset, and the second uplink channel resource corresponds to the second subset;

[0437] The access network device receives the feedback information sent through a channel format on the channel resource in the uplink subframe, wherein the channel format is a p-codebook size channel format, and the first uplink channel resource carries feedback information of the p-codebook size channel format, or the channel format is a q-codebook size channel format, and the second uplink channel resource carries feedback information of the q-codebook size channel format, p and q are natural numbers, and q>p.

[0438] Among them, the p or q codebook size channel format means that the channel format can support ACK / NACK feedback of p or q codebook sizes at most, and the codebook size refers to the original number of bits before the encoding of ACK / NACK. Specifically, the p codebook size corresponds to the first subset, and the q codebook size corresponds to the second subset, that is, the p codebook size is determined by the number of downlink subframes in the first subset, and the q codebook size is determined by the number of downlink subframes in the second subset.

[0439] Optionally, the channel resources occupied by the p codebook size channel format include n resource units, and the channel resources occupied by the q codebook size channel format include m resource units, where m and n are natural numbers, and m is greater than or equal to n. In this way, the p codebook size channel format can also be regarded as an n resource unit channel format, and the q codebook size channel format can also be regarded as an m resource unit channel format. When m is greater than n, the following embodiments based on the m resource unit channel format and the n resource unit channel format are fully applicable to the p codebook size and q codebook size schemes. In addition, the p codebook size channel format and the q codebook size channel format are also applicable to the case where m is equal to n. In other words, the codebook size channel format scheme is a higher-level scheme of the resource unit channel format.

[0440] It should be noted that, in order to save space, the contents in this embodiment that are the same as those in the above embodiment can refer to the description of the above embodiment and will not be repeated here.

[0441] Further, the sending module 710 of the embodiment of the present invention is also used to send subframe configuration information to the UE, wherein the subframe configuration information is used to determine the uplink subframe associated with the first downlink subframe set. The subframe configuration information is sent to the UE in advance. The subframe configuration information may be the uplink and downlink subframe configuration in Table 2. In this way, the UE can determine the uplink subframe according to the pre-subframe configuration information.

[0442] Optionally, the sending module 710 of the embodiment of the present invention is also used to send a division rule to the UE. The division rule is used to determine the first subset and the second subset included in the first downlink subframe set. The division rule may be a preconfigured rule in the above embodiment. Of course, the sending module 710 in this embodiment may not send the division rule, and the access network device and the UE both determine the first set and the second set according to a default rule. Alternatively, the sending module 710 may also send the first subset and the second subset to the UE.

[0443] It should be noted that the relationship between the first set, the second set and the first downlink subframe set can be referred to the description of the above embodiment, which will not be repeated here.

[0444] Similar to the above embodiment, in this embodiment, the first subset corresponds to the first uplink channel resource, and the receiving module 730 is used to receive the feedback information of the n resource unit channel format carried on the first uplink channel resource; the second subset corresponds to the second uplink channel resource, and the receiving module 730 is used to receive the feedback information of the m resource unit channel format carried on the second uplink channel resource, where m and n are natural numbers and m>n. Only one channel format is used to receive feedback information on the corresponding channel resource each time. That is, for a large subset, the UE sends feedback information in a large resource format, and for a small subset, the UE sends feedback information in a small resource format.

[0445] When m is greater than n, the above embodiments based on the m resource unit channel format and the n resource unit channel format, including the description of the first downlink subframe set, the first subset and the second subset, are fully applicable to the scheme of the p codebook size and the q codebook size. In addition, the p codebook size channel format and the q codebook size channel format are also applicable to the case where m is equal to n. Specifically as follows:

[0446] When m is equal to n, the time-frequency resources occupied by the two channel formats have the same number of resource units, for example, both occupy 1 RB, or the time-frequency resources occupied by the two channel formats completely overlap. For details, refer to the description in the above embodiment.

[0447] Through the above-mentioned embodiment, the downlink subframes corresponding to the uplink subframes are combined and divided into at least two subsets, and the first subset is a true subset of the second subset, and corresponding uplink channel resources are configured for the two subsets. For the large subset, the feedback information is sent in a large resource format, and for the small subset, the feedback information is sent in a small resource format, thereby solving the problem of how to send feedback information when more carriers are configured, and when the number of carriers scheduled instantaneously is small, it is possible to fall back to the small resource format to send feedback information. Therefore, the embodiment of the present invention can reduce resource overhead while sending feedback information, such as ACK / NACK.

[0448] Further, the sending module 710 is configured to send the data channel scheduled by the downlink control information to the UE in the following manner: sending the data channel scheduled by the downlink control information in a downlink subframe included in a second downlink subframe set. The second downlink subframe set refers to the description in the above embodiment and will not be repeated here.

[0449] When m is greater than n, the above embodiments based on the m resource unit channel format and the n resource unit channel format, including the description of the second downlink subframe set, are fully applicable to the schemes of the p codebook size and the q codebook size. In addition, the p codebook size channel format and the q codebook size channel format are also applicable to the case where m is equal to n.

[0450] When the processing module 720 determines channel resources, when the second downlink subframe set is different from the first subset, the second subset and the first downlink subframe set, the determined channel resources are different and the used PUCCH formats may also be different.

[0451] When m is greater than n, the following embodiments based on the m resource unit channel format and the n resource unit channel format, including the resource indication information for the channel resource indication method, are fully applicable to the p codebook size and q codebook size schemes. In addition, the p codebook size channel format and the q codebook size channel format are also applicable to the case where m is equal to n.

[0452] In the case where the second downlink subframe set is a subset of the first subset (case 1), the channel resource determined by the processing module is the first uplink channel resource; or,

[0453] In the case where the second downlink subframe set includes only downlink subframes in the second subset and not belonging to the first subset (case 2), the channel resource determined by the processing module 720 is the second uplink channel resource; or,

[0454] In the case where the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset (Case 3), the channel resource determined by the processing module is the second uplink channel resource.

[0455] Similarly, this embodiment also takes the n resource unit channel format as a single RB-PUCCH format and the m resource unit channel format as a double RB-PUCCH format as an example for illustration. The first uplink channel resource corresponds to the single RB-PUCCH format, and the second uplink channel resource corresponds to the double RB-PUCCH format.

[0456] For case 1, when the second downlink subframe set includes only downlink subframes in the first subset, the feedback information is sent in a small resource format. For cases 2 and 3, i.e., the second downlink subset includes downlink subframes outside the first subset but belonging to the second subset, the second uplink channel resources corresponding to the second subset are used. That is, the feedback information is sent in a large resource format.

[0457] Further, the downlink control information sent by the sending module 710 includes resource indication information, and the resource indication information is used to indicate the first uplink channel resource or the second uplink channel resource used to carry the feedback information. Specifically, when the channel resource determined by the processing module 720 is the first uplink channel resource, the processing module 720 controls the sending module 710 to send the downlink control information, and the resource indication information included in the downlink control information indicates the first uplink channel resource. When the channel resource determined by the processing module 720 is the second uplink channel resource, the processing module 720 controls the sending module 710 to send the downlink control information, and the resource indication information included in the downlink control information indicates the second uplink channel resource.

[0458] Furthermore, the processing module 720 is further configured to pre-configure a resource set for the UE through the sending module 710, wherein the processing module 720 selects a channel resource from the resource set.

[0459] Furthermore, the processing module 720 is further configured to pre-configure, for the UE through the sending module 710, a corresponding relationship between the state of the resource indication information and the channel resources in the resource set.

[0460] In this way, after determining the channel resources, the processing module 720 further sends the resource indication information through the sending module 710, and the state of the resource indication information corresponds to the determined channel resources.

[0461] Among them, similar to the above embodiment, there are the following three implementation methods for the resource set pre-configured by the access network device for the UE.

[0462] As in the first implementation of the above scheme 1:

[0463] The processing module 720 is also used to send a second uplink channel resource set to the UE through the sending module 710, wherein the second uplink channel resource is the uplink channel resource in the second uplink channel resource set, partial resources of each uplink channel resource in the multiple uplink channel resources in the second uplink channel resource set constitute a first uplink channel resource set, and the first uplink channel resource is the uplink channel resource in the first uplink channel resource set.

[0464] It should be noted that, in the embodiment of the present invention, the second uplink channel resource can be independently configured for different uplink subframes, thereby improving scheduling flexibility. Of course, different uplink subframes can also be configured with the same second uplink channel resource. For example, for uplink subframe 2 in uplink and downlink subframe configuration 2, it can be a second uplink channel resource, and for uplink subframe 7 in uplink and downlink subframe configuration 2, it can be another second uplink channel resource.

[0465] Similar to the above embodiment, the channel resources of the m resource unit channel format in this scheme include the corresponding fallback channel resources of the n resource unit channel format on the time-frequency resources, so that there is no need to separately reserve the channel resources of the n resource unit channel format and the m resource unit channel format that are orthogonal on the time-frequency resources, so that the base station does not need to perform blind detection on the channel resources of the n resource unit channel format and the m resource unit channel format that are orthogonal on the time-frequency resources, thereby saving the resource overhead of the uplink control channel, such as PUCCH.

[0466] Specifically, Figure 4 As shown, no further description is given here.

[0467] Optionally, the channel resource determined by the processing module 720 is the second uplink channel resource, and the resource indication information indicates the second uplink channel resource in the second uplink channel resource set.

[0468] Optionally, the channel resource determined by the processing module 720 is the first uplink channel resource, and the resource indication information indicates the uplink channel resource in the second uplink channel resource set that includes the first uplink channel resource, or the resource indication information indicates the first uplink channel resource in the first uplink channel resource set.

[0469] Further, the resource indication information indicates that the second uplink channel resource set includes the uplink channel resource of the first uplink channel resource, and the processing module 720 is configured to determine the channel resource in the following manner: determining the first uplink channel resource in the uplink channel resources indicated by the resource indication information according to the identification information or pre-configuration information of the UE. For specific implementation, please refer to the description in the above embodiment.

[0470] Considering that the above solution in this embodiment may be affected by the UE missing the detection of the PDCCH, this embodiment further proposes a solution for preventing the UE from missing the detection of the PDCCH.

[0471] In the case where the channel resource is a second uplink channel resource, the receiving module 730 is configured to receive the feedback information in the following manner: receiving the feedback information sent via the m resource unit channel format on the second uplink channel resource indicated by the resource indication information in the uplink subframe.

[0472] However, when the UE misses detecting the PDCCH, for the UE, the feedback information may be sent on part of the uplink channel resources of the second uplink channel resources indicated by the resource indication information using the n resource unit channel format. At this time, the receiving module 730 cannot receive the feedback information sent by the UE using the m resource unit channel format on the second uplink channel resources indicated by the resource indication information in the uplink subframe. Therefore, the processing module 720 is also used to determine the first uplink channel resource in the second uplink channel resource indicated by the resource indication information according to the identification information or pre-configuration information of the UE, and control the receiving module 730 to receive the feedback information sent using the n resource unit channel format on the first uplink channel resource.

[0473] Specifically, for example, the second downlink subframe set actually scheduled by the base station for the UE includes downlink subframe 4 of carrier 1-carrier 6, but because the UE missed detecting the PDCCH of downlink subframe 4 of scheduled carrier 6, the UE determines that the second downlink subframe set is a subset of the first subset. At this time, the UE uses the fallback single RB PUCCH format 3 to feedback ACK / NACK, while the base station expects the UE to use the double RB PUCCH format 3 to feedback ACK / NACK. To solve the above problem of UE missing PDCCH detection, the base station can blindly detect the channel resources of single RB and double RB PUCCH formats 3, that is, the base station needs to detect the channel resource 2 of the double RB PUCCH format 3 indicated by the resource indication information, and also needs to detect a channel resource 2 of a single RB PUCCH format 3 in the channel resource 2 of the double RB PUCCH format 3, and the channel resource 2 of the single RB PUCCH format 3 is the fallback PUCCH channel resource of the UE.

[0474] The processing module 720 may control the receiving module 720 to blindly detect the sequence of the feedback information part in the n resource unit channel format and the m resource unit channel format, and / or to blindly detect the sequence of the reference signal part in the n resource unit channel format and the m resource unit channel format. For example, the base station may blindly detect the sequence of the ACK / NACK part in the single RB and double RB PUCCH formats 3, and / or blindly detect the sequence of the reference signal part in the single RB and double RB PUCCH formats 3.

[0475] Optionally, the above-mentioned blind detection n-resource unit channel format and m-resource unit channel format may use the same feedback information sequence or different feedback information sequences, and the feedback information sequence may be a time domain orthogonal code and / or a frequency domain cyclic shift code.

[0476] For example, the above-mentioned dual RB PUCCH format 3 and the single RB PUCCH format 3 in the dual RB PUCCH format 3 may use the same ACK / NACK sequence, or may use different ACK / NACK sequences, and the ACK / NACK sequence may be a time domain orthogonal code and / or a frequency domain cyclic shift code; and / or, the above-mentioned dual RB PUCCH format 3 and the single RB PUCCH format 3 in the dual RB PUCCH format 3 may use the same reference signal sequence, or may use different reference signal sequences, and the reference signal sequence may be a time domain orthogonal code and / or a frequency domain cyclic shift code. In addition, the channel resources of the dual RB PUCCH format 3 in the scheme include the channel resources of its corresponding fallback single RB PUCCH format 3 on the time-frequency resources, so that the channel resources of the single RB and dual RB PUCCH formats 3 orthogonal on the time-frequency resources do not need to be separately reserved, so that the base station does not need to perform blind detection on the channel resources of the single RB and dual RB PUCCH formats 3 orthogonal on the time-frequency resources, thereby saving the resource overhead of PUCCH.

[0477] As the second implementation method of the above scheme 1:

[0478] The processing module 720 is also used to, before determining the channel resources, configure a first uplink channel resource set and a second uplink channel set to the UE through the sending module 710, wherein the first uplink channel resource is an uplink channel resource in the first uplink channel resource set, and the second uplink channel resource is an uplink channel resource in the second uplink channel resource set.

[0479] It should be noted that, in the embodiment of the present invention, the first uplink channel resource and the second uplink channel resource can be independently configured for different subframes. For example, for uplink subframe 2 in uplink and downlink subframe configuration 2, it can be a second uplink channel resource, and for uplink subframe 7 in uplink and downlink subframe configuration 2, it can be another second uplink channel resource.

[0480] Furthermore, the first state set of the resource indication information indicates the uplink channel resources in the first uplink channel resource set, the second state set of the resource indication information indicates the uplink channel resources in the second uplink channel resource set, and the first state set and the second state set are disjoint. The processing module 720 is further configured to pre-configure the corresponding relationship between the states in the first state set and the channel resources in the first uplink channel resource set to the UE through the sending module 710.

[0481] For details, please refer to the description and Figure 5 shown.

[0482] In this implementation manner, since different states of the resource indication information can indicate different channel resources, therefore, when the second downlink subframe set is a subset of the first subset, if the channel resource indicated by the resource indication information is a downlink channel resource corresponding to the m resource unit channel format, the UE still determines to use the second downlink channel resource to send feedback information. Specifically, even if the second downlink subframe set only includes downlink subframes in the first subset at this time, if the state of the two bits of the resource indication information received by the UE is 10, it means indicating the dual RB PUCCH channel resource 1 to feedback ACK / NACK, so the UE determines to use the dual RB PUCCH format to send ACK / NACK in the dual RB PUCCH format 3 channel resource 1. At this time, the UE will also find that it has missed the PDCCH that schedules downlink subframes outside the first subset, because if there is no missed detection, the base station will instruct the UE to use the single RB PUCCH channel resource, considering that the second downlink subframe set only includes downlink subframes in the first subset. On the contrary, if the UE finds that the second downlink subframe set is a subset of the first subset, it uses single RBPUCCH format 3, and once a missed detection occurs, the base station expects the UE to use dual RB-PUCCH format 3 to feedback ACK / NACK. In this embodiment, different status indications of the resource indication information are used to indicate the use of single RB-PUCCH format 3 or dual RB-PUCCH format 3, so that as long as the UE determines that the resource indication information indicates the use of dual RB-PUCCH format 3, the UE uses dual RB-PUCCH format 3 to feedback ACK / NACK, thereby solving the above-mentioned PUCCH channel resource ambiguity problem caused by missed detection of the control channel.

[0483] As the third implementation method of the above scheme 1:

[0484] Similar to the above embodiment, the processing unit 720 of the access network device is also used to pre-configure two uplink channel resource sets for the UE through the sending module 710, namely, the first uplink channel resource set and the second uplink channel resource set. Figure 6As shown, the first uplink channel resource set includes Figure 6 The second uplink channel resource set includes four single RB channel resources, single RB1, single RB2, single RB3 and single RB4 channel resources. Figure 6 The four dual RB channel resources in the dual RB are dual RB1, dual RB2, dual RB3 and dual RB4. In this resource set configuration, the four states of the resource indication information indicate the channel resources corresponding to the first uplink channel resource set and / or the second uplink channel resource set.

[0485] For example, for case 1, the resource indication information indicates a first uplink channel resource in a first uplink channel resource set; for cases 2 and 3, the resource indication information indicates a second uplink channel resource in a second uplink channel resource set.

[0486] Similar to the implementation mode, the first uplink channel resource and the second uplink channel resource may be independently configured for different subframes.

[0487] For this solution, in case 1, there is also a possibility that the UE misses detecting the PDCCH. To avoid this situation, the access network device needs to perform blind detection on the channel resources corresponding to the n resource unit channel format and the channel resources corresponding to the m resource unit channel format.

[0488] Among them, the processing module 720 is also used to control the receiving module 730 to determine the second uplink channel resource in the second uplink channel resource of the resource indication information if the first uplink channel resource indicated by the resource indication information in the uplink subframe does not receive the feedback information sent through the n resource unit channel format, and control the receiving module 730 to receive the feedback information sent through the m resource unit channel format on the second uplink channel resource.

[0489] For example, the base station may blindly detect the sequence of the ACK / NACK part in single RB and double RB PUCCH format 3, and / or blindly detect the sequence of the reference signal part in single RB and double RB PUCCH format 3. For details, please refer to the description in the above embodiment, which will not be repeated here.

[0490] When m is greater than n, the above-mentioned embodiments based on the m resource unit channel format and the n resource unit channel format, including different implementation methods of the scheme in the indication method of the resource indication information, are completely applicable to the scheme of the p codebook size and the q codebook size. In addition, the p codebook size channel format and the q codebook size channel format are also applicable to the case where m is equal to n.

[0491] Similar to the above embodiment, in this embodiment (including all implementation modes), the processing module 720 determines the first subset and the second subset according to a pre-configuration. Moreover, the pre-configuration can be independently configured for different uplink subframes. Moreover, this embodiment is described by taking two subsets as an example, but for the case of multiple subsets, the solution of this embodiment can still be adopted. It is just that different subsets are respectively configured with corresponding uplink channel resource sets.

[0492] It should be noted that the above embodiments are all described by taking TDD uplink and downlink subframe configuration 2 as an example, and the number of downlink subframes associated with different uplink subframes (subframe 2 and subframe 7) in the uplink and downlink subframe configuration is the same. The embodiment of the present invention can also be used in other TDD uplink and downlink subframe configurations, such as TDD uplink and downlink subframe configuration 1. For TDD uplink and downlink configuration 1, the number of downlink subframes associated with uplink subframe 2 and uplink subframe 3 is different. Under the carrier aggregation configuration, the maximum number of ACK / NACK bits that need to be supported in different uplink subframes may be different. Assuming that 20 carriers of TDD uplink and downlink subframe configuration 1 are carrier aggregated, uplink subframe 2 needs to feedback a maximum of 40 ACK / NACK bits, while uplink subframe 3 needs to feedback a maximum of 20 ACK / NACK bits. Therefore, for uplink subframe 2, there is a need to divide the above-mentioned first subset and second subset, while for uplink subframe 3, there is no need to divide the above-mentioned subsets, and the single RB PUCCH format 3 can be used directly to carry ACK / NACK. Therefore, the solution provided by the embodiment of the present invention is performed independently for different uplink subframes. Specifically, the division of the above-mentioned first subset and the second subset, the configuration of the channel resource set of the m-resource unit channel format and the n-resource unit channel format, and the indication of the resource indication information can all be performed independently for different uplink subframes.

[0493] Optionally, in one embodiment, part of the time-frequency resources of the first uplink channel resources corresponding to the n resource unit channel format overlap with part of the time-frequency resources of the second uplink channel resources corresponding to the m resource unit channel format; or, the time-frequency resources of the first uplink channel resources corresponding to the n resource unit channel format are part of the time-frequency resources of the second uplink channel resources corresponding to the m resource unit channel format; wherein the n resource unit channel format and the m resource unit channel format with overlapping time-frequency resources use orthogonal codes. For details, refer to the description in the above embodiment. In this way, the channel resource multiplexing capability of the channel format, such as PUCCH format 3, can be increased, and the resource reservation overhead can be reduced.

[0494] For example, the channel resources of the single RB-PUCCH format 3 and the dual RB-PUCCH format 3 may overlap in time-frequency resources, such as partially overlap, or the time-frequency resources where the latter are located include the time-frequency resources where the former are located, such as Figure 8 As shown. The single RB-PUCCH format 3 and the double RB-PUCCH format 3 in each time slot overlap on two frequency domain RBs, where different single RB-PUCCH format 3 channels can use frequency division multiplexing of different RBs, such as the RB composed of the upper 12 subcarriers and the RB composed of the lower 12 subcarriers. The single RB-PUCCH format 3 and the double RB-PUCCH format 3 channels are time-division multiplexed through the time domain OCC, such as Figure 8 In addition, the reference signal sequences used by single RB-PUCCH format 3 and dual RB-PUCCH format 3 are also different, and the reference signal sequences include time domain orthogonal codes and / or frequency domain cyclic shift codes.

[0495] The above embodiment is described by taking single RB and double RB-PUCCH format 3 as examples. Of course, this embodiment can also be applied to PUCCH format 3 of more RBs. However, the scheme can be extended to PUCCH formats of other resource units, such as PUCCH formats of double RB and 4RB, or PUCCH formats of different numbers of sub-RBs, etc. Here, the frequency domain width of the sub-RB can be smaller than the frequency domain width of one RB, such as occupying 4 subcarriers, occupying one time slot or subframe in the time domain; or, the time domain width of the sub-RB can be smaller than one time slot, such as occupying 3 time domain symbols, occupying 12 subcarriers in the frequency domain, that is, the frequency domain width of one RB; or, the sub-RB occupies a smaller frequency domain width and time domain length than the current one RB in both the time domain and the frequency domain. Therefore, the PUCCH format 3 of the single RB and double RB in this embodiment can be extended to the PUCCH format of m resource units and the PUCCH format of n resource units, where m and n are both natural numbers and m>n.

[0496] Optionally, the first subset and the second subset may also partially overlap. For example, assuming that the UE is configured with 8 TDD carriers, and each carrier is configured with TDD uplink and downlink subframes 2, if the above-mentioned division method of equally dividing the number of carriers and the sets are not overlapping is adopted, then the downlink subframes 4, 5, 6 and 8 of carriers 1 to 4 are the first subset, and the downlink subframes 4, 5, 6 and 8 of carriers 5 to 8 are the second subset. In this way, if only the first subset is scheduled, the original number of ACK / NACK bits is 16 for ACK / NACK encoding; if the downlink subframes in the first subset and the second subset are scheduled, the original number of ACK / NACK bits is 32 for ACK / NACK encoding. Alternatively, a partially overlapping set division method may also be used, that is, the first downlink subframe set is composed of downlink subframes 4, 5, 6 and 8 of carriers 1 to 5, and the second downlink subframe set is composed of downlink subframes 4, 5, 6 and 8 of carriers 4 to 8. At this time, if only one downlink subframe in a set is scheduled, the ACK / NACK encoding can be performed using the original ACK / NACK bit number of 20, that is, the codebook and the codebook size are determined according to the first subset or the second subset that is scheduled; if the scheduling of overlapping downlink subframes is received, the codebook and the codebook size can be determined by using the first subset in a predefined manner; if both sets are scheduled, the ACK / NACK is encoded using the original bit number of 32, that is, the codebook and the codebook size are determined according to the combination of the first subset and the second subset. Since the original number of bits for encoding in single set scheduling is increased, the partially overlapping set division can achieve a higher ACK / NACK transmission efficiency. Otherwise, if the above non-overlapping set division method is used, when scheduling carriers 1 to 5 or 4 to 8, a larger original number of 32 bits must be used for encoding.

[0497] The embodiment of the present invention further provides a set division in which three subsets are mutually inclusive and a multi-level fallback ACK / NACK transmission scheme. This embodiment can be combined with the above two embodiments. Specifically, the corresponding receiving module and sending module can be controlled by the processing module 120 of the UE or the processing module 720 of the access network device to execute. Still taking the TDD uplink and downlink configuration 2 of the above 15 carriers as an example, the second downlink subframe set is still divided into three subsets, the first subset includes downlink subframes 4, 5, 6 and 8 of carriers 1 to 5, the second subset includes downlink subframes 4, 5, 6 and 8 of carriers 1 to 10, and the third subset includes downlink subframes 4, 5, 6 and 8 of carriers 1 to 15. It can be seen that the second downlink subframe set includes the first downlink subframe set, and the third downlink subframe set includes the second downlink subframe set. At present, other set divisions with non-complete inclusion relationships are not excluded. The specific method can be directly expanded according to the division method of the above two sets. Among them, the channel format corresponding to the third subset is the k resource unit channel format, k>m. In this embodiment, the n resource unit is a single RB, the m resource unit is a double RB, and the k resource unit is a quad RB.

[0498] The UE can determine the specific PUCCH channel resources to feedback ACK / NACK based on the resource indication information. Specifically, the four states included in the 2-bit resource indication information can correspond to different downlink subframe sets respectively. For example, state 00 corresponds to the channel resources of single RB-PUCCH format 3 of the first subset, states 01 and 10 correspond to the channel resources of double RB-PUCCH format 3 of the second subset respectively, and state 11 corresponds to the channel resources of triple RB-PUCCH format 3 of the third subset. For the convenience of description, it is assumed here that the downlink subframes included in the first subset are represented by subframe i, the downlink subframes included in the second subset are represented by subframe i and subframe j, where subframe j is not in the first subset, and the downlink subframes included in the third subset are represented by subframes i, j and k, where subframe k is not in the first subset and the second subset. At this time, if the base station only schedules downlink subframe i for the UE, the resource indication information indicates a state of 00, and the UE determines to use the channel resources of the single RB-PUCCH format 3 indicated by the state to feedback the corresponding ACK / NACK according to the state. At this time, the ACK / NACK codebook size is determined according to the number of downlink subframes i included in the first subset; if the base station schedules downlink subframe j or i+j for the UE, but does not schedule downlink subframe k, the resource indication information indicates a state of 01 or 10, and the UE determines to use the channel resources of the dual RB-PUCCH format 3 indicated by the state according to the state. resources to feedback the corresponding ACK / NACK, and the codebook size of ACK / NACK is determined according to the number of downlink subframes i and j included in the second subset; if the base station schedules downlink subframes k or i+k or j+k or i+j+k for the UE, the resource indication information indicates a state of 11, and the UE determines to use the channel resources of the three RB-PUCCH formats 3 indicated by the state to feedback the corresponding ACK / NACK, and the codebook size of ACK / NACK is determined according to the number of downlink subframes i, j and k included in the third subset. Only an embodiment in which the resource indication information indicates PUCCH format 3 channel resources with different numbers of RBs is provided here. It is also applicable to the other embodiments using the resource indication information mentioned above, for example, it is also applicable to the following embodiment: the resource indication information indicates four three-RB PUCCH format 3 channel resources, and the UE performs fallback transmission of part of the resources in a certain three-RB PUCCH format 3 channel resource indicated by the resource indication information according to the relationship between the received first downlink subframe set and the three subsets, such as fallback transmission of double RB or single RB PUCCH format 3.

[0499] When m is greater than n, the above embodiments based on the m resource unit channel format and the n resource unit channel format, including independent configuration of different uplink subframes, channel resource overlap, set overlap, three-level fallback, etc., are fully applicable to the p codebook size and q codebook size schemes. In addition, the p codebook size channel format and the q codebook size channel format are also applicable to the case where m is equal to n.

[0500] It should be noted that all embodiments of the present invention are described by taking TDD CA as an example. In addition to TDD CA, the solution of the embodiment of the present invention can also be applied to FDD CA and FDD+TDD CA. The solution is similar to TDD CA.

[0501] Fig. 9 The embodiment of the present invention provides a method for sending feedback information, which corresponds to the embodiment of the above user equipment. The above user equipment can execute the method of this embodiment. Therefore, the same contents can refer to the description of the above embodiments, which will not be repeated here. This embodiment includes the following steps.

[0502] Step 901: User equipment UE receives downlink control information sent by an access network device;

[0503] Step 902, the UE receives a data channel scheduled by the downlink control information;

[0504] Step 903: The UE determines an uplink subframe for sending feedback information corresponding to the data channel, wherein the first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, the first subset includes at least two downlink subframes, and the first subset is a true subset of the second subset;

[0505] Step 904: The UE determines a channel resource, wherein the channel resource is a first uplink channel resource or a second uplink channel resource, wherein the first uplink channel resource corresponds to the first subset, and the second uplink channel resource corresponds to the second subset;

[0506] Step 905: The UE uses a channel format to send the feedback information on the channel resource in the uplink subframe, wherein the channel format is an n-resource unit channel format, and the UE uses the n-resource unit channel format to send the feedback information on the first uplink channel resource; or, the channel format is an m-resource unit channel format, and the UE uses the m-resource unit channel format to send the feedback information on the second uplink channel resource, where m and n are natural numbers and m>n.

[0507] The present invention also provides the following embodiments:

[0508] The user equipment UE receives downlink control information sent by the access network device;

[0509] The UE receives a data channel scheduled by the downlink control information;

[0510] The UE determines an uplink subframe for sending feedback information corresponding to the data channel, wherein the first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, the first subset includes at least two downlink subframes, and the first subset is a true subset of the second subset;

[0511] The UE determines a channel resource, wherein the channel resource is a first uplink channel resource or a second uplink channel resource, wherein the first uplink channel resource corresponds to the first subset, and the second uplink channel resource corresponds to the second subset;

[0512] The UE uses a channel format to send the feedback information on the channel resource in the uplink subframe, wherein the channel format is a p-codebook size channel format, and the UE uses the p-codebook size channel format to send the feedback information on a first uplink channel resource, or the channel format is a q-codebook size channel format, and the UE uses the q-codebook size channel format to send the feedback information on a second uplink channel resource, p and q are natural numbers, and q>p.

[0513] For the description of the p codebook size channel format and the q codebook size channel format, please refer to the description of the above embodiment. In the following embodiments, each description can directly replace the n resource unit channel format with the p codebook size channel format, and replace the m resource unit channel format with the q codebook size channel format. And m can be greater than or equal to n.

[0514] Through the above embodiment, when more carriers are configured for the UE, the maximum number of ACK / NACK bits exceeds the carrying capacity of the current single RB-PUCCH format 3. The embodiment of the present invention combines the downlink subframes corresponding to the uplink subframes and divides them into at least two subsets, and the first subset is a true subset of the second subset, and the corresponding uplink channel resources are configured for the two subsets. For the large subset, the feedback information is sent in a large resource format, and for the small subset, the feedback information is sent in a small resource format, thereby solving the problem of how to send feedback information when more carriers are configured, and when the number of carriers scheduled instantaneously is small, it can fall back to the small resource format to send feedback information. Therefore, the embodiment of the present invention can reduce resource overhead while feeding back ACK / NACK.

[0515] Further, the UE receives the data channel scheduled by the downlink control information, including: the UE receives the data channel scheduled by the downlink control information in a downlink subframe included in the second downlink subframe set.

[0516] In an optional embodiment, when the second downlink subframe set is a subset of the first subset, the channel resource determined by the UE is the first uplink channel resource; or,

[0517] In a case where the second downlink subframe set includes only downlink subframes in the second subset and not belonging to the first subset, the channel resource determined by the UE is the second uplink channel resource; or,

[0518] When the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset, the channel resource determined by the UE is the second uplink channel resource.

[0519] In another optional embodiment, when the second downlink subframe set is a subset of the first subset, the channel resource determined by the UE is the first uplink channel resource; or,

[0520] In the case where the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset, the channel resource determined by the UE is the second uplink channel resource. For the scheme of this embodiment, when the second downlink subframe set only includes downlink subframes in the second subset and not belonging to the first subset, similar to the second downlink subframe set being a subset of the first subset, it can also be regarded as a subset, and feedback information is sent using channel resources in an n resource unit channel format, that is, a fallback n resource unit channel format is used.

[0521] Optionally, the downlink control information includes resource indication information; the UE determines the channel resources, including: the UE determines the channel resources for carrying the feedback information according to the resource indication information.

[0522] Optionally, before the UE determines the channel resource, the method further includes:

[0523] The UE obtains a second uplink channel resource set configured by the access network device, wherein the second uplink channel resource is an uplink channel resource in the second uplink channel resource set, partial resources of each uplink channel resource in the multiple uplink channel resources included in the second uplink channel resource set constitute a first uplink channel resource set, and the first uplink channel resource is an uplink channel resource in the first uplink channel resource set.

[0524] Further, the channel resource determined by the UE is the first uplink channel resource;

[0525] The UE determines a channel resource, including:

[0526] The UE determines the uplink channel resource indicated by the resource indication information from the second uplink channel resource set according to the resource indication information; and the UE determines the first uplink channel resource from the uplink channel resource indicated by the resource indication information; or,

[0527] The UE determines the first uplink channel resource from the first uplink channel resource set according to the resource indication information; or

[0528] The UE determines the first uplink channel resource according to the resource indication information, wherein the first uplink channel resource is a part of the uplink channel resources indicated by the resource indication information in the second uplink channel resource set.

[0529] In the case where the channel resource determined by the UE is the second uplink channel resource, the UE determines the second uplink channel resource from the second uplink channel resource set according to the resource indication information.

[0530] The UE determines a channel resource, including:

[0531] The UE determines, according to identification information or pre-configuration information of the UE, a first uplink channel resource among the uplink channel resources indicated by the resource indication information, wherein the uplink channel resource indicated by the resource indication information is an uplink channel resource in the second uplink channel resource set.

[0532] Optionally, before the UE determines the channel resource, the step further includes:

[0533] The UE obtains a first uplink channel resource set and a second uplink channel set pre-configured by the access network device, wherein the first uplink channel resource is an uplink channel resource in the first uplink channel resource set, and the second uplink channel resource is an uplink channel resource in the second uplink channel resource set.

[0534] In one embodiment, the first state set of the resource indication information indicates the uplink channel resources in the first uplink channel resource set, and the second state set of the resource indication information indicates the uplink channel resources in the second uplink channel resource set, and the first state set and the second state set do not intersect.

[0535] Further, the channel resource determined by the UE is the first uplink channel resource, and the UE determines the channel resource, including: the UE determines the first uplink channel resource from the first uplink channel set according to a state in a first state set of the resource indication information; or

[0536] The channel resource determined by the UE is the second uplink channel resource, and the UE determines the channel resource, including: the UE determines the second uplink channel resource for the feedback information from the second uplink channel set according to the state in the second state set of the resource indication information.

[0537] In another embodiment, the state of the resource indication information indicates the uplink channel resources in the first uplink channel resource set and / or the uplink channel resources in the second uplink channel resource set.

[0538] Further, the channel resource determined by the UE is the first uplink channel resource, and the UE determines the channel resource, including:

[0539] The UE determines, according to the resource indication information, a third uplink channel resource indicated by the resource indication information from the first uplink channel resource set and determines a fourth uplink channel resource indicated by the resource indication information from the second uplink channel resource set; the UE determines that the second downlink subframe set is a subset of the first subset; and the UE determines that the third uplink channel resource is the first uplink channel resource; or

[0540] The UE determines that the second downlink subframe set is a subset of the first subset; and the UE determines, according to the resource indication information, the first uplink channel resource indicated by the resource indication information from the first uplink channel resource set;

[0541] or

[0542] The channel resource determined by the UE is the second uplink channel resource, and the UE determines the channel resource, including:

[0543] The UE determines, according to the resource indication information, a fifth uplink channel resource indicated by the resource indication information from the first uplink channel resource set and a sixth uplink channel resource indicated by the resource indication information from the second uplink channel resource set; the UE determines that the second downlink subframe set includes only downlink subframes in the second subset and not belonging to the first subset; and the UE determines that the sixth uplink channel resource is the second uplink channel resource; or

[0544] The UE determines that the second downlink subframe set includes only downlink subframes in the second subset and not belonging to the first subset; and the UE determines the second uplink channel resource indicated by the resource indication information from the second uplink channel resource set according to the state of the resource indication information; or

[0545] The UE determines, according to the resource indication information, a fifth uplink channel resource indicated by the resource indication information from the first uplink channel resource set and a sixth uplink channel resource indicated by the resource indication information from the second uplink channel resource set; the UE determines that the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset; and the UE determines that the sixth uplink channel resource is the second uplink channel resource; or

[0546] The UE determines that the second downlink subframe set includes the downlink subframes in the first subset and the downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset; and the UE determines the second uplink channel resource indicated by the resource indication information from the second uplink channel resource set based on the resource indication information.

[0547] Optionally, before the UE determines the channel resource, the step further includes:

[0548] The UE obtains a first uplink channel resource set and a second uplink channel set pre-configured by the access network device, wherein the first uplink channel resource is an uplink channel resource in the first uplink channel resource set, and the second uplink channel resource is an uplink channel resource in the second uplink channel resource set;

[0549] The downlink control information includes resource indication information, the state of the resource indication information includes a first state set and a second state set, the first state set indicates uplink channel resources in the first uplink channel resource set, the second state set indicates uplink channel resources in the second uplink channel resource set, and the first state set and the second state set are disjoint;

[0550] The UE determines a channel resource, including:

[0551] In a case where the second downlink subframe set is a subset of the first subset, the UE determines, according to the resource indication information, the second uplink channel resource indicated by the resource indication information from the second uplink channel resource set.

[0552] In this case, the UE determines the channel resource based on the resource indication information. When the channel resource indicated by the resource indication information is the second uplink channel resource, but the second downlink subframe set for sending PDCCH detected by the UE is a subset of the first subset, this indicates that the UE has a missed detection. The UE still uses the second uplink channel resource indicated by the resource indication information to send feedback information.

[0553] Optionally, part of the time-frequency resources of the first uplink channel resources corresponding to the n resource unit channel format overlap with part of the time-frequency resources of the second uplink channel resources corresponding to the m resource unit channel format; or the time-frequency resources of the first uplink channel resources corresponding to the n resource unit channel format are part of the time-frequency resources of the second uplink channel resources corresponding to the m resource unit channel format; wherein the n resource unit channel format and the m resource unit channel format with overlapping time-frequency resources use orthogonal codes.

[0554] Furthermore, before the UE determines the channel resources, the method further includes: the UE determines the first subset and the second subset according to a pre-configuration.

[0555] The pre-configuration may be independently configured for different uplink subframes.

[0556] It should be noted that the solutions in the above embodiments can be used as embodiments alone, and are not dependent on steps 901 to 905.

[0557] Fig.10 The embodiment shows a method for sending feedback information, which corresponds to the embodiment of the user equipment. The user equipment can execute the method of this embodiment. Therefore, the same contents can refer to the description of each embodiment, which will not be repeated here. Fig. 9 For details of the individual solutions of the corresponding embodiments, reference can be made to the description in the above embodiments. This embodiment includes the following steps.

[0558] Step 1001: UE receives downlink control information sent by an access network device;

[0559] Step 1002, the UE receives a data channel scheduled by the downlink control information;

[0560] Step 1003: The UE determines an uplink subframe for sending feedback information corresponding to the data channel, wherein the first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, the first subset includes at least two downlink subframes, and the first subset is a true subset of the second subset;

[0561] Step 1004: The UE determines a channel resource, wherein, in a case where the second downlink subframe set is a subset of the first subset, the channel resource determined by the UE is the first uplink channel resource; or, in a case where the second downlink subframe set includes only downlink subframes in the second subset and not belonging to the first subset, the channel resource determined by the UE is the second uplink channel resource; or, in a case where the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset, the channel resource determined by the UE is the second uplink channel resource;

[0562] Step 1005: The UE uses a channel format to send the feedback information on the channel resource in the uplink subframe, wherein the channel format is an n-resource unit channel format, and the UE uses the n-resource unit channel format to send the feedback information on a first uplink channel resource; or, the channel format is an m-resource unit channel format, and the UE uses the m-resource unit channel format to send the feedback information on a second uplink channel resource, where m and n are natural numbers and m>n.

[0563] The present invention also provides the following embodiments:

[0564] The UE receives downlink control information sent by the access network device;

[0565] The UE receives a data channel scheduled by the downlink control information;

[0566] The UE determines an uplink subframe for sending feedback information corresponding to the data channel, wherein the first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, the first subset includes at least two downlink subframes, and the first subset is a true subset of the second subset;

[0567] The UE determines a channel resource, wherein, in a case where the second downlink subframe set is a subset of the first subset, the channel resource determined by the UE is the first uplink channel resource; or, in a case where the second downlink subframe set includes only downlink subframes in the second subset and not belonging to the first subset, the channel resource determined by the UE is the second uplink channel resource; or, in a case where the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset, the channel resource determined by the UE is the second uplink channel resource;

[0568] The UE uses a channel format to send the feedback information on the channel resource in the uplink subframe, wherein the channel format is a p-codebook size channel format, and the UE uses the p-codebook size channel format to send the feedback information on a first uplink channel resource, or the channel format is a q-codebook size channel format, and the UE uses the q-codebook size channel format to send the feedback information on a second uplink channel resource, p and q are natural numbers, and q>p.

[0569] For the description of the p codebook size channel format and the q codebook size channel format, please refer to the description of the above embodiment. In the following embodiments, each description can directly replace the n resource unit channel format with the p codebook size channel format, and replace the m resource unit channel format with the q codebook size channel format. And m can be greater than or equal to n.

[0570] Through the above embodiment, when more carriers are configured for the UE, the maximum number of ACK / NACK bits exceeds the carrying capacity of the current single RB-PUCCH format 3. The embodiment of the present invention combines the downlink subframes corresponding to the uplink subframes and divides them into at least two subsets, and the first subset is a true subset of the second subset, and the corresponding uplink channel resources are configured for the two subsets. For the large subset, the feedback information is sent in a large resource format, and for the small subset, the feedback information is sent in a small resource format, thereby solving the problem of how to send feedback information when more carriers are configured, and when the number of carriers scheduled instantaneously is small, it can fall back to the small resource format to send feedback information. Therefore, the embodiment of the present invention can reduce resource overhead while feeding back ACK / NACK.

[0571] Fig.11 The embodiment shows a method for sending feedback information, which corresponds to the embodiment of the user equipment. The user equipment can execute the method of this embodiment. Therefore, the same contents can refer to the description of each embodiment, which will not be repeated here. Fig. 9 For details of the individual solutions of the corresponding embodiments, reference can be made to the description in the above embodiments. This embodiment includes the following steps.

[0572] Step 1101: UE receives downlink control information sent by an access network device;

[0573] Step 1102, the UE receives a data channel scheduled by the downlink control information;

[0574] Step 1103: The UE determines an uplink subframe for sending feedback information corresponding to the data channel, wherein the first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, the first subset includes at least two downlink subframes, and the first subset is a true subset of the second subset;

[0575] Step 1104: The UE determines a channel resource, wherein, in a case where the second downlink subframe set is a subset of the first subset, the channel resource determined by the UE is the first uplink channel resource; or, in a case where the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset, the channel resource determined by the UE is the second uplink channel resource;

[0576] Step 1105: The UE uses a channel format to send the feedback information on the channel resource in the uplink subframe, wherein the channel format is an n-resource unit channel format, and the UE uses the n-resource unit channel format to send the feedback information on the first uplink channel resource; or, the channel format is an m-resource unit channel format, and the UE uses the m-resource unit channel format to send the feedback information on the second uplink channel resource, where m and n are natural numbers and m>n.

[0577] The present invention also provides the following embodiments:

[0578] The UE receives downlink control information sent by the access network device;

[0579] The UE receives a data channel scheduled by the downlink control information;

[0580] The UE determines an uplink subframe for sending feedback information corresponding to the data channel, wherein the first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, the first subset includes at least two downlink subframes, and the first subset is a true subset of the second subset;

[0581] The UE determines a channel resource, wherein, in a case where the second downlink subframe set is a subset of the first subset, the channel resource determined by the UE is the first uplink channel resource; or, in a case where the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset, the channel resource determined by the UE is the second uplink channel resource;

[0582] The UE uses a channel format to send the feedback information on the channel resource in the uplink subframe, wherein the channel format is a p-codebook size channel format, and the UE uses the p-codebook size channel format to send the feedback information on a first uplink channel resource, or the channel format is a q-codebook size channel format, and the UE uses the q-codebook size channel format to send the feedback information on a second uplink channel resource, p and q are natural numbers, and q>p.

[0583] For the description of the p codebook size channel format and the q codebook size channel format, please refer to the description of the above embodiment. In the following embodiments, each description can directly replace the n resource unit channel format with the p codebook size channel format, and replace the m resource unit channel format with the q codebook size channel format. And m can be greater than or equal to n.

[0584] In the case where the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset, the channel resource determined by the UE is the second uplink channel resource. For the scheme of this embodiment, when the second downlink subframe set only includes downlink subframes in the second subset and not belonging to the first subset, similar to the second downlink subframe set being a subset of the first subset, it can also be regarded as a subset, and feedback information is sent using channel resources in an n resource unit channel format, that is, a fallback n resource unit channel format is used.

[0585] Fig.12 The embodiment of the present invention provides a method for receiving feedback information, which corresponds to the embodiment of the access network device described above. The access network device described above can execute the method of this embodiment. Therefore, the same contents can refer to the description of each of the above embodiments, which will not be repeated here. This embodiment includes the following steps.

[0586] Step 1201: The access network device sends downlink control information to the user equipment UE;

[0587] Step 1202, the access network device sends a data channel scheduled by the downlink control information to the UE;

[0588] Step 1203: The access network device determines an uplink subframe for receiving feedback information corresponding to the data channel, wherein the first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, the first subset includes at least two downlink subframes, and the first subset is a true subset of the second subset;

[0589] Step 1204: The access network device determines a channel resource, wherein the channel resource is a first uplink channel resource or a second uplink channel resource, the first uplink channel resource corresponds to the first subset, and the second uplink channel resource corresponds to the second subset;

[0590] Step 1205: The access network device receives the feedback information sent through the channel format on the channel resource in the uplink subframe, wherein the channel format is an n-resource unit channel format, and the first uplink channel resource carries the feedback information of the n-resource unit channel format; or, the channel format is an m-resource unit channel format, and the second uplink channel resource carries the feedback information of the m-resource unit channel format, where m and n are natural numbers and m>n.

[0591] The present invention also provides the following embodiments:

[0592] The access network device sends downlink control information to the user equipment UE;

[0593] The access network device sends a data channel scheduled by the downlink control information to the UE;

[0594] The access network device determines an uplink subframe for receiving feedback information corresponding to the data channel, wherein the first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, the first subset includes at least two downlink subframes, and the first subset is a true subset of the second subset;

[0595] The access network device determines a channel resource, wherein the channel resource is a first uplink channel resource or a second uplink channel resource, the first uplink channel resource corresponds to the first subset, and the second uplink channel resource corresponds to the second subset;

[0596] The access network device receives the feedback information sent through a channel format on the channel resource in the uplink subframe, wherein the channel format is a p-codebook size channel format, and the first uplink channel resource carries feedback information of the p-codebook size channel format, or the channel format is a q-codebook size channel format, and the second uplink channel resource carries feedback information of the q-codebook size channel format, p and q are natural numbers, and q>p.

[0597] For the description of the p codebook size channel format and the q codebook size channel format, please refer to the description of the above embodiment. In the following embodiments, each description can directly replace the n resource unit channel format with the p codebook size channel format, and replace the m resource unit channel format with the q codebook size channel format. And m can be greater than or equal to n.

[0598] Through the above embodiment, when more carriers are configured for the UE, the maximum number of ACK / NACK bits exceeds the carrying capacity of the current single RB-PUCCH format 3. The embodiment of the present invention combines the downlink subframes corresponding to the uplink subframes and divides them into at least two subsets, and the first subset is a true subset of the second subset, and the corresponding uplink channel resources are configured for the two subsets. For the large subset, the feedback information is sent in a large resource format, and for the small subset, the feedback information is sent in a small resource format, thereby solving the problem of how to send feedback information when more carriers are configured, and when the number of carriers scheduled instantaneously is small, it can fall back to the small resource format to send feedback information. Therefore, the embodiment of the present invention can reduce resource overhead while feeding back ACK / NACK.

[0599] Further, the access network device sends the data channel scheduled by the downlink control information to the UE, including: the access network device sends the data channel scheduled by the downlink control information in a downlink subframe included in the second downlink subframe set.

[0600] In an optional solution, when the second downlink subframe set is a subset of the first subset, the channel resource determined by the access network device is the first uplink channel resource; or,

[0601] In a case where the second downlink subframe set includes only downlink subframes in the second subset and not belonging to the first subset, the channel resource determined by the access network device is the second uplink channel resource; or,

[0602] When the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset, the channel resource determined by the access network device is the second uplink channel resource.

[0603] In another optional solution, when the second downlink subframe set is a subset of the first subset, the channel resource determined by the access network device is the first uplink channel resource; or,

[0604] When the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset, the channel resource determined by the access network device is the second uplink channel resource.

[0605] Furthermore, the downlink control information includes resource indication information, and the resource indication information is used to indicate the first uplink channel resource or the second uplink channel resource used to carry the feedback information.

[0606] Optionally, before the access network device determines the channel resources, the step further includes:

[0607] The access network device sends information of a second uplink channel resource set to the UE, wherein the second uplink channel resource is an uplink channel resource in the second uplink channel resource set, partial resources of each uplink channel resource among the multiple uplink channel resources in the second uplink channel resource set constitute a first uplink channel resource set, and the first uplink channel resource is an uplink channel resource in the first uplink channel resource set.

[0608] Further, the channel resource determined by the access network device is the first uplink channel resource, and the resource indication information indicates the uplink channel resource of the second uplink channel resource set that includes the first uplink channel resource, or the resource indication information indicates the first uplink channel resource in the first uplink channel resource set; or

[0609] The channel resource determined by the access network device is the second uplink channel resource, and the resource indication information indicates the second uplink channel resource in the second uplink channel resource set.

[0610] Further, the resource indication information indicates the uplink channel resources in the second uplink channel resource set including the first uplink channel resources;

[0611] The access network device determines the channel resources, including:

[0612] The access network device determines, according to the identification information or pre-configuration information of the UE, a first uplink channel resource among the uplink channel resources indicated by the resource indication information.

[0613] Optionally, before the access network device determines the channel resources, the step further includes:

[0614] The access network device sends information of a first uplink channel resource set and information of a second uplink channel set to the UE, wherein the first uplink channel resource is an uplink channel resource in the first uplink channel resource set, and the second uplink channel resource is an uplink channel resource in the second uplink channel resource set.

[0615] Furthermore, a first state set of the resource indication information indicates uplink channel resources in the first uplink channel resource set, and a second state set of the resource indication information indicates uplink channel resources in the second uplink channel resource set, and the first state set and the second state set are not intersecting.

[0616] Optionally, the state of the resource indication information indicates the uplink channel resources in the first uplink channel resource set and / or the uplink channel resources in the second uplink channel resource set.

[0617] Further, the access network device receives the feedback information sent through the channel format on the channel resources in the uplink subframe, including: the access network device receives the feedback information sent through the m resource unit channel format on the second uplink channel resources indicated by the resource indication information in the uplink subframe.

[0618] Further, after the access network device receives the feedback information sent in a channel format on the channel resource in the uplink subframe, the method further includes:

[0619] The access network device determines, according to the identification information or pre-configuration information of the UE, a first uplink channel resource in the second uplink channel resource, and receives, on the first uplink channel resource, the feedback information sent in the n resource unit channel format; or,

[0620] The access network device determines a first uplink channel resource in the first uplink channel resources according to the resource indication information, and receives the feedback information sent through the n resource unit channel format on the first uplink channel resource.

[0621] Furthermore, part of the time-frequency resources of the first uplink channel resources corresponding to the n resource unit channel format overlap with part of the time-frequency resources of the second uplink channel resources corresponding to the m resource unit channel format; or the time-frequency resources of the first uplink channel resources corresponding to the n resource unit channel format are part of the time-frequency resources of the second uplink channel resources corresponding to the m resource unit channel format; wherein the n resource unit channel format and the m resource unit channel format with overlapping time-frequency resources use orthogonal codes.

[0622] Furthermore, before the access network device determines the channel resources, the method further includes: the access network device determines the first subset and the second subset according to a pre-configuration, wherein the pre-configuration may be independently configured for different uplink subframes.

[0623] It should be noted that the solutions in the above embodiments can be used as embodiments alone, and are not dependent on steps 1201 to 1205 .

[0624] Fig.13 The embodiment shows a feedback information receiving method provided by the embodiment, which corresponds to the embodiment of the access network device mentioned above. The access network device mentioned above can execute the method of this embodiment. Therefore, the same contents can refer to the description of each of the above embodiments, which will not be repeated here. Fig.12 For details of the individual solutions of the corresponding embodiments, reference can be made to the description in the above embodiments. This embodiment includes the following steps.

[0625] Step 1301: The access network device sends downlink control information to the UE;

[0626] Step 1302: The access network device sends the data channel scheduled by the downlink control information in a downlink subframe included in a second downlink subframe set;

[0627] Step 1303: The access network device determines an uplink subframe for receiving feedback information corresponding to the data channel, wherein the first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, the first subset includes at least two downlink subframes, and the first subset is a true subset of the second subset;

[0628] Step 1304: The access network device determines a channel resource, wherein, in a case where the second downlink subframe set is a subset of the first subset, the channel resource determined by the access network device is the first uplink channel resource; or, in a case where the second downlink subframe set includes only downlink subframes in the second subset and not belonging to the first subset, the channel resource determined by the access network device is the second uplink channel resource; or, in a case where the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset, the channel resource determined by the access network device is the second uplink channel resource;

[0629] Step 1305: The access network device receives the feedback information sent through the channel format on the channel resource in the uplink subframe, wherein the channel format is an n-resource unit channel format, and the first uplink channel resource carries the feedback information of the n-resource unit channel format; or, the channel format is an m-resource unit channel format, and the second uplink channel resource carries the feedback information of the m-resource unit channel format, where m and n are natural numbers and m>n.

[0630] The present invention also provides the following embodiments:

[0631] The access network device sends downlink control information to the UE;

[0632] The access network device sends the data channel scheduled by the downlink control information in a downlink subframe included in the second downlink subframe set;

[0633] The access network device determines an uplink subframe for receiving feedback information corresponding to the data channel, wherein the first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, the first subset includes at least two downlink subframes, and the first subset is a true subset of the second subset;

[0634] The access network device determines a channel resource, wherein, in a case where the second downlink subframe set is a subset of the first subset, the channel resource determined by the access network device is the first uplink channel resource; or, in a case where the second downlink subframe set includes only downlink subframes in the second subset and not belonging to the first subset, the channel resource determined by the access network device is the second uplink channel resource; or, in a case where the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset, the channel resource determined by the access network device is the second uplink channel resource;

[0635] The access network device receives the feedback information sent through a channel format on the channel resource in the uplink subframe, wherein the channel format is a p-codebook size channel format, and the first uplink channel resource carries feedback information of the p-codebook size channel format, or the channel format is a q-codebook size channel format, and the second uplink channel resource carries feedback information of the q-codebook size channel format, p and q are natural numbers, and q>p.

[0636] For the description of the p codebook size channel format and the q codebook size channel format, please refer to the description of the above embodiment. In the following embodiments, each description can directly replace the n resource unit channel format with the p codebook size channel format, and replace the m resource unit channel format with the q codebook size channel format. And m can be greater than or equal to n.

[0637] Through the above embodiment, when more carriers are configured for the UE, the maximum number of ACK / NACK bits exceeds the carrying capacity of the current single RB-PUCCH format 3. The embodiment of the present invention combines the downlink subframes corresponding to the uplink subframes and divides them into at least two subsets, and the first subset is a true subset of the second subset, and the corresponding uplink channel resources are configured for the two subsets. For the large subset, the feedback information is sent in a large resource format, and for the small subset, the feedback information is sent in a small resource format, thereby solving the problem of how to send feedback information when more carriers are configured, and when the number of carriers scheduled instantaneously is small, it can fall back to the small resource format to send feedback information. Therefore, the embodiment of the present invention can reduce resource overhead while feeding back ACK / NACK.

[0638] Further, the access network device sends the data channel scheduled by the downlink control information to the UE, including: the access network device sends the data channel scheduled by the downlink control information in a downlink subframe included in the second downlink subframe set.

[0639] Fig.14 The embodiment shows a feedback information receiving method provided by the embodiment, which corresponds to the embodiment of the access network device mentioned above. The access network device mentioned above can execute the method of this embodiment. Therefore, the same contents can refer to the description of each of the above embodiments, which will not be repeated here. Fig.12 For details of the individual solutions of the corresponding embodiments, reference can be made to the description in the above embodiments. This embodiment includes the following steps.

[0640] Step 1401: The access network device sends downlink control information to the UE;

[0641] Step 1402: The access network device sends the data channel scheduled by the downlink control information in a downlink subframe included in a second downlink subframe set;

[0642] Step 1403: The access network device determines an uplink subframe for receiving feedback information corresponding to the data channel, wherein the first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, the first subset includes at least two downlink subframes, and the first subset is a true subset of the second subset;

[0643] Step 1404: The access network device determines a channel resource, wherein, in a case where the second downlink subframe set is a subset of the first subset, the channel resource determined by the access network device is the first uplink channel resource; or, in a case where the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset, the channel resource determined by the access network device is the second uplink channel resource;

[0644] Step 1405, the access network device receives the feedback information sent through the channel format on the channel resource in the uplink subframe, wherein the channel format is an n resource unit channel format, and the first uplink channel resource carries the feedback information of the n resource unit channel format, or the channel format is an m resource unit channel format, and the second uplink channel resource carries the feedback information of the m resource unit channel format, m and n are natural numbers, and m>n.

[0645] The present invention also provides the following embodiments:

[0646] The access network device sends downlink control information to the UE;

[0647] The access network device sends the data channel scheduled by the downlink control information in a downlink subframe included in the second downlink subframe set;

[0648] The access network device determines an uplink subframe for receiving feedback information corresponding to the data channel, wherein the first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, the first subset includes at least two downlink subframes, and the first subset is a true subset of the second subset;

[0649] The access network device determines a channel resource, wherein, in a case where the second downlink subframe set is a subset of the first subset, the channel resource determined by the access network device is the first uplink channel resource; or, in a case where the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset, the channel resource determined by the access network device is the second uplink channel resource;

[0650] The access network device receives the feedback information sent through a channel format on the channel resource in the uplink subframe, wherein the channel format is a p-codebook size channel format, and the first uplink channel resource carries feedback information of the p-codebook size channel format, or the channel format is a q-codebook size channel format, and the second uplink channel resource carries feedback information of the q-codebook size channel format, p and q are natural numbers, and q>p.

[0651] For the description of the p codebook size channel format and the q codebook size channel format, please refer to the description of the above embodiment. In the following embodiments, each description can directly replace the n resource unit channel format with the p codebook size channel format, and replace the m resource unit channel format with the q codebook size channel format. And m can be greater than or equal to n.

[0652] Through the above embodiment, when more carriers are configured for the UE, the maximum number of ACK / NACK bits exceeds the carrying capacity of the current single RB-PUCCH format 3. The embodiment of the present invention combines the downlink subframes corresponding to the uplink subframes and divides them into at least two subsets, and the first subset is a true subset of the second subset, and the corresponding uplink channel resources are configured for the two subsets. For the large subset, the feedback information is sent in a large resource format, and for the small subset, the feedback information is sent in a small resource format, thereby solving the problem of how to send feedback information when more carriers are configured, and when the number of carriers scheduled instantaneously is small, it can fall back to the small resource format to send feedback information. Therefore, the embodiment of the present invention can reduce resource overhead while feeding back ACK / NACK.

[0653] It should be noted that the processing module in all the above embodiments of the present invention can be implemented by at least one processor, where the processor can be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The sending module can be implemented by a transmitter or a transceiver. The receiving module can be implemented by a receiver or a transceiver. In addition, the access network device and user equipment in the above embodiments of the present invention can also include components such as a memory, where the memory can include a read-only memory and a random access memory, and provide instructions and data to the processor. A part of the memory can also include a non-volatile random access memory. For example, the memory can also store information about the device type. The processor calls the instruction code of the memory to control the network device and other modules in the user equipment in the embodiment of the present invention to perform the above operations.

[0654] It should be understood that the references to "one embodiment" or "an embodiment" throughout the specification mean that the specific features, structures, or characteristics associated with the embodiment are included in at least one embodiment of the present invention. Therefore, the references to "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0655] In various embodiments of the present invention, it should be understood that the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0656] In addition, the terms "system" and "network" are often used interchangeably in this article. It should be understood that the term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0657] In the embodiments provided in the present application, it should be understood that "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B according to A does not mean determining B only according to A, and B can also be determined according to A and / or other information.

[0658] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0659] In several embodiments provided in the present application, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interfaces, devices or units, which may be electrical, mechanical or other forms.

[0660] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0661] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, referred to as ROM), random access memory (Random Access Memory, referred to as RAM), disk or optical disk and other media that can store program codes.

[0662] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A communication device, characterized in that: include: A receiving module, used to receive downlink control information sent by an access network device, and receive a data channel scheduled by the downlink control information; a processing module, configured to determine an uplink subframe for sending feedback information corresponding to the data channel received by the receiving module, and determine a channel resource, wherein the first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, the first subset includes at least two downlink subframes, the first subset is a true subset of the second subset, the channel resource is a first uplink channel resource or a second uplink channel resource, the first uplink channel resource corresponds to the first subset, and the second uplink channel resource corresponds to the second subset; and A sending module, used to send the feedback information on the channel resource in the uplink subframe using a channel format under the control of the processing module, wherein the channel format is a p codebook size channel format or a q codebook size channel format, and sending the feedback information on the channel resource in the uplink subframe using the channel format includes: sending the feedback information on a first uplink channel resource using the p codebook size channel format, or sending the feedback information on a second uplink channel resource using the q codebook size channel format, p and q are natural numbers, and q>p.

2. The communication device according to claim 1, wherein: The receiving module is configured to receive the data channel scheduled by the downlink control information in the following manner: receiving the data channel scheduled by the downlink control information in a downlink subframe included in the second downlink subframe set; Wherein, in a case where the second downlink subframe set is a subset of the first subset, the channel resource determined by the processing module is the first uplink channel resource; or, In a case where the second downlink subframe set includes only downlink subframes in the second subset and not belonging to the first subset, the channel resource determined by the processing module is the second uplink channel resource; or, When the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset, the channel resource determined by the processing module is the second uplink channel resource.

3. The communication device according to claim 1, wherein: The channel resources occupied by the p-codebook size channel format include n resource units, and the channel resources occupied by the q-codebook size channel format include m resource units, where m and n are natural numbers, and m is greater than or equal to n.

4. The communication device according to claim 2, wherein: The downlink control information includes resource indication information; The processing module is configured to determine the channel resource in the following manner: determine the channel resource used to carry the feedback information according to the resource indication information.

5. The communication device according to claim 4, characterized in that The processing module is also used to, before determining the channel resources, obtain a second uplink channel resource set configured by the access network device, wherein the second uplink channel resource is an uplink channel resource in the second uplink channel resource set, partial resources of each uplink channel resource in the multiple uplink channel resources included in the second uplink channel resource set constitute a first uplink channel resource set, and the first uplink channel resource is an uplink channel resource in the first uplink channel resource set.

6. The communication device according to claim 5, characterized in that The channel resource determined by the processing module is the first uplink channel resource; The processing module is configured to determine the channel resources in the following manner: Determining the uplink channel resource indicated by the resource indication information from the second uplink channel resource set according to the resource indication information; and determining the first uplink channel resource from the uplink channel resources indicated by the resource indication information; or, Determine the first uplink channel resource from the first uplink channel resource set according to the resource indication information; or The first uplink channel resource is determined according to the resource indication information, wherein the first uplink channel resource is part of the uplink channel resources indicated by the resource indication information in the second uplink channel resource set.

7. The communication device according to claim 5 or 6, characterized in that: The processing module is configured to determine the channel resources in the following manner: According to the identification information or pre-configuration information of the communication device, a first uplink channel resource among the uplink channel resources indicated by the resource indication information is determined, wherein the uplink channel resource indicated by the resource indication information is an uplink channel resource in the second uplink channel resource set.

8. The communication device according to claim 4, characterized in that The processing module is also used to, before determining the channel resources, obtain a first uplink channel resource set and a second uplink channel resource set pre-configured by the access network device, wherein the first uplink channel resource is an uplink channel resource in the first uplink channel resource set, and the second uplink channel resource is an uplink channel resource in the second uplink channel resource set.

9. The communication device according to claim 8, characterized in that The first state set of the resource indication information indicates uplink channel resources in the first uplink channel resource set, and the second state set of the resource indication information indicates uplink channel resources in the second uplink channel resource set. The first state set and the second state set are disjoint.

10. The communication device according to claim 9, characterized in that The channel resource determined by the processing module is the first uplink channel resource, and the processing module is configured to determine the channel resource in the following manner: determining the first uplink channel resource from a first uplink channel set according to a state in a first state set of the resource indication information; or The channel resource determined by the processing module is the second uplink channel resource, and the processing module is configured to determine the channel resource in the following manner: according to the state in the second state set of the resource indication information, determine the second uplink channel resource for the feedback information from the second uplink channel set.

11. The communication device according to claim 9, characterized in that The state of the resource indication information indicates the uplink channel resources in the first uplink channel resource set and / or the uplink channel resources in the second uplink channel resource set.

12. The communication device according to claim 9 or 11, characterized in that: The channel resource determined by the processing module is the first uplink channel resource, and the processing module is configured to determine the channel resource in the following manner: According to the resource indication information, determine, from the first uplink channel resource set, a third uplink channel resource indicated by the resource indication information, and determine, from the second uplink channel resource set, a fourth uplink channel resource indicated by the resource indication information; Determine that the second downlink subframe set is a subset of the first subset; and determining that the third uplink channel resource is the first uplink channel resource; or Determine that the second downlink subframe set is a subset of the first subset; and determining, according to the resource indication information, the first uplink channel resource indicated by the resource indication information from the first uplink channel resource set; or The channel resource determined by the processing module is the second uplink channel resource, and the processing module is configured to determine the channel resource in the following manner: According to the resource indication information, determine, from the first uplink channel resource set, a fifth uplink channel resource indicated by the resource indication information, and determine, from the second uplink channel resource set, a sixth uplink channel resource indicated by the resource indication information; Determine that the second downlink subframe set includes only downlink subframes in the second subset and not in the first subset; and determine that the sixth uplink channel resource is the second uplink channel resource; or Determine that the second downlink subframe set includes only downlink subframes in the second subset and not belonging to the first subset; and determine, according to the state of the resource indication information, the second uplink channel resource indicated by the resource indication information from the second uplink channel resource set; or According to the resource indication information, determine, from the first uplink channel resource set, a fifth uplink channel resource indicated by the resource indication information, and determine, from the second uplink channel resource set, a sixth uplink channel resource indicated by the resource indication information; Determine that the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset; and determining the sixth uplink channel resource as the second uplink channel resource; or Determine that the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset; And according to the resource indication information, determining the second uplink channel resource indicated by the resource indication information from the second uplink channel resource set.

13. The communication device according to claim 1, wherein: The processing module is further configured to, before determining the channel resources, obtain a first uplink channel resource set and a second uplink channel set pre-configured by the access network device, wherein the first uplink channel resource is an uplink channel resource in the first uplink channel resource set, and the second uplink channel resource is an uplink channel resource in the second uplink channel resource set; The downlink control information includes resource indication information, the state of the resource indication information includes a first state set and a second state set, the first state set indicates uplink channel resources in the first uplink channel resource set, the second state set indicates uplink channel resources in the second uplink channel resource set, and the first state set and the second state set are disjoint; The processing module is configured to determine channel resources in the following manner: when the second downlink subframe set is a subset of the first subset, determining the second uplink channel resource indicated by the resource indication information from the second uplink channel resource set according to the resource indication information.

14. The communication device according to claim 1, wherein: Part of the time-frequency resources of the first uplink channel resources corresponding to the p-codebook size channel format overlaps with part of the time-frequency resources of the second uplink channel resources corresponding to the q-codebook size channel format; or The time-frequency resources of the first uplink channel resources corresponding to the p-codebook size channel format are part of the time-frequency resources of the second uplink channel resources corresponding to the q-codebook size channel format; The p-codebook size channel format and the q-codebook size channel format with overlapping time-frequency resources use orthogonal codes.

15. The communication device according to claim 1, wherein: The processing module is further configured to determine the first subset and the second subset according to a pre-configuration before determining the channel resources.

16. The communication device according to claim 15, characterized in that The pre-configuration is independently configured for different uplink subframes.

17. A communication device, characterized in that: include: A sending module, configured to send downlink control information to a user equipment UE under the control of the processing module, and to send a data channel scheduled by the downlink control information to the UE under the control of the processing module; The processing module is configured to control the sending module to send downlink control information to the UE, control the sending module to send a data channel scheduled by the downlink control information to the UE, determine an uplink subframe for receiving feedback information corresponding to the data channel, and determine a channel resource, wherein the first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, the first subset includes at least two downlink subframes, the first subset is a true subset of the second subset, the channel resource is a first uplink channel resource or a second uplink channel resource, the first uplink channel resource corresponds to the first subset, and the second uplink channel resource corresponds to the second subset; and A receiving module, configured to receive the feedback information sent in a channel format on the channel resource in the uplink subframe determined by the processing module, wherein the channel format is a p codebook size channel format or a q codebook size channel format, and the receiving the feedback information sent in a channel format on the channel resource in the uplink subframe determined by the processing module includes: receiving the feedback information in a p codebook size channel format on the first uplink channel resource, or receiving the feedback information in a q codebook size channel format on the second uplink channel resource, where p and q are natural numbers, and q>p.

18. The communication device according to claim 17, characterized in that: The sending module is configured to send the data channel scheduled by the downlink control information to the UE in the following manner: sending the data channel scheduled by the downlink control information in a downlink subframe included in a second downlink subframe set; in, In a case where the second downlink subframe set is a subset of the first subset, the channel resource determined by the processing module is the first uplink channel resource; or, In a case where the second downlink subframe set includes only downlink subframes in the second subset and not belonging to the first subset, the channel resource determined by the processing module is the second uplink channel resource; or, When the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset, the channel resource determined by the processing module is the second uplink channel resource.

19. The communication device according to claim 17, wherein: The channel resources occupied by the p-codebook size channel format include n resource units, and the channel resources occupied by the q-codebook size channel format include m resource units, where m and n are natural numbers, and m is greater than or equal to n.

20. The communication device according to claim 18, characterized in that The downlink control information includes resource indication information, and the resource indication information is used to indicate the first uplink channel resource or the second uplink channel resource used to carry the feedback information.

21. The communication device according to claim 18, characterized in that The processing module is also used to, before determining the channel resources, send information of a second uplink channel resource set to the UE through the sending module, wherein the second uplink channel resources are uplink channel resources in the second uplink channel resource set, partial resources of each uplink channel resource among the multiple uplink channel resources in the second uplink channel resource set constitute a first uplink channel resource set, and the first uplink channel resource is an uplink channel resource in the first uplink channel resource set.

22. The communication device according to claim 21, characterized in that The channel resource determined by the processing module is the first uplink channel resource, the resource indication information indicates an uplink channel resource in the second uplink channel resource set that includes the first uplink channel resource, or the resource indication information indicates the first uplink channel resource in the first uplink channel resource set; or The channel resource determined by the processing module is the second uplink channel resource, and the resource indication information indicates the second uplink channel resource in the second uplink channel resource set.

23. The communication device according to claim 22, characterized in that The resource indication information indicates the uplink channel resources in the second uplink channel resource set including the first uplink channel resources; The processing module is configured to determine the channel resources in the following manner: A first uplink channel resource among the uplink channel resources indicated by the resource indication information is determined according to the identification information or pre-configuration information of the UE.

24. The communication device according to claim 20, characterized in that The processing module is also used to control the sending module to send information of a first uplink channel resource set and information of a second uplink channel set to the UE before determining the channel resources, wherein the first uplink channel resource is an uplink channel resource in the first uplink channel resource set, and the second uplink channel resource is an uplink channel resource in the second uplink channel resource set.

25. The communication device according to claim 24, characterized in that The first state set of the resource indication information indicates uplink channel resources in the first uplink channel resource set, and the second state set of the resource indication information indicates uplink channel resources in the second uplink channel resource set. The first state set and the second state set are disjoint.

26. The communication device according to claim 24, characterized in that The state of the resource indication information indicates the uplink channel resources in the first uplink channel resource set and / or the uplink channel resources in the second uplink channel resource set.

27. The communication device according to claim 21, characterized in that The receiving module is configured to receive the feedback information in the following manner: receiving the feedback information sent through the q codebook size channel format on the second uplink channel resource indicated by the resource indication information in the uplink subframe.

28. The communication device according to claim 27, characterized in that The processing module is further used to determine, according to the identification information or pre-configuration information of the UE, a first uplink channel resource in the second uplink channel resource, and control the receiving module to receive the feedback information sent through the p-codebook size channel format on the first uplink channel resource; or The processing module is further configured to determine a first uplink channel resource in the first uplink channel resources according to the resource indication information, and control the receiving module to receive the feedback information sent through the p-codebook size channel format on the first uplink channel resource.

29. The communication device according to claim 17, wherein: Part of the time-frequency resources of the first uplink channel resources corresponding to the p-codebook size channel format overlaps with part of the time-frequency resources of the second uplink channel resources corresponding to the q-codebook size channel format; or The time-frequency resources of the first uplink channel resources corresponding to the p-codebook size channel format are part of the time-frequency resources of the second uplink channel resources corresponding to the q-codebook size channel format; The p-codebook size channel format and the q-codebook size channel format with overlapping time-frequency resources use orthogonal codes.

30. The communication device according to claim 18, characterized in that Before determining the channel resources, the processing module determines the first subset and the second subset according to a pre-configuration.

31. The communication device according to claim 30, characterized in that The pre-configuration is independently configured for different uplink subframes.

32. A method for sending feedback information, characterized in that: include: Receiving downlink control information sent by access network equipment; Receiving a data channel scheduled by the downlink control information; Determine an uplink subframe for sending feedback information corresponding to the data channel, wherein a first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, the first subset includes at least two downlink subframes, and the first subset is a true subset of the second subset; Determine a channel resource, wherein the channel resource is a first uplink channel resource or a second uplink channel resource, wherein the first uplink channel resource corresponds to the first subset, and the second uplink channel resource corresponds to the second subset; The feedback information is sent on the channel resource in the uplink subframe using a channel format, wherein the channel format is a p codebook size channel format or a q codebook size channel format, and the feedback information is sent on the channel resource in the uplink subframe using a channel format, comprising: sending the feedback information on a first uplink channel resource using a p codebook size channel format, or sending the feedback information on a second uplink channel resource using a q codebook size channel format, where p and q are natural numbers, and q>p.

33. The method of claim 32, wherein: Receiving the data channel scheduled by the downlink control information includes: receiving the data channel scheduled by the downlink control information in a downlink subframe included in the second downlink subframe set; Wherein, when the second downlink subframe set is a subset of the first subset, the determined channel resource is the first uplink channel resource; or, In a case where the second downlink subframe set includes only downlink subframes in the second subset and not belonging to the first subset, the determined channel resource is the second uplink channel resource; or, When the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset, the determined channel resource is the second uplink channel resource.

34. The method of claim 32, wherein: The channel resources occupied by the p-codebook size channel format include n resource units, and the channel resources occupied by the q-codebook size channel format include m resource units, where m and n are natural numbers, and m is greater than or equal to n.

35. The method of claim 33, wherein: The downlink control information includes resource indication information; Determining a channel resource includes: determining a channel resource for carrying the feedback information according to the resource indication information.

36. The method of claim 35, wherein: Before determining the channel resources, the following steps are also required: Obtain a second uplink channel resource set configured by the access network device, wherein the second uplink channel resource is an uplink channel resource in the second uplink channel resource set, partial resources of each uplink channel resource in the multiple uplink channel resources included in the second uplink channel resource set constitute a first uplink channel resource set, and the first uplink channel resource is an uplink channel resource in the first uplink channel resource set.

37. The method of claim 36, wherein: The determined channel resource is the first uplink channel resource; Determine channel resources, including: Determine the uplink channel resource indicated by the resource indication information from the second uplink channel resource set according to the resource indication information; and determine the first uplink channel resource from the uplink channel resource indicated by the resource indication information; or, Determine the first uplink channel resource from the first uplink channel resource set according to the resource indication information; or The first uplink channel resource is determined according to the resource indication information, wherein the first uplink channel resource is part of the uplink channel resources indicated by the resource indication information in the second uplink channel resource set.

38. The method of claim 37, wherein: Determine channel resources, including: According to identification information or pre-configuration information of the communication device, a first uplink channel resource among the uplink channel resources indicated by the resource indication information is determined, wherein the uplink channel resource indicated by the resource indication information is an uplink channel resource in the second uplink channel resource set.

39. The method of claim 35, wherein: Before determining the channel resources, the following steps are also required: Acquire a first uplink channel resource set and a second uplink channel set pre-configured by the access network device, wherein the first uplink channel resource is an uplink channel resource in the first uplink channel resource set, and the second uplink channel resource is an uplink channel resource in the second uplink channel resource set.

40. The method of claim 39, wherein: The first state set of the resource indication information indicates uplink channel resources in the first uplink channel resource set, and the second state set of the resource indication information indicates uplink channel resources in the second uplink channel resource set. The first state set and the second state set are disjoint.

41. The method of claim 40, wherein: The determined channel resource is the first uplink channel resource, and determining the channel resource includes: determining the first uplink channel resource from a first uplink channel set according to a state in a first state set of the resource indication information; or The determined channel resource is the second uplink channel resource, and determining the channel resource includes: determining the second uplink channel resource for the feedback information from the second uplink channel set according to a state in a second state set of the resource indication information.

42. The method of claim 40, wherein: The state of the resource indication information indicates the uplink channel resources in the first uplink channel resource set and / or the uplink channel resources in the second uplink channel resource set.

43. The method according to claim 40 or 42, characterized in that The determined channel resource is the first uplink channel resource, and determining the channel resource includes: Determine, according to the resource indication information, a third uplink channel resource indicated by the resource indication information from the first uplink channel resource set and a fourth uplink channel resource indicated by the resource indication information from the second uplink channel resource set; determine the second downlink subframe set to be a subset of the first subset; and determine the third uplink channel resource to be the first uplink channel resource; or Determine that the second downlink subframe set is a subset of the first subset; and determine, according to the resource indication information, the first uplink channel resource indicated by the resource indication information from the first uplink channel resource set; or The determined channel resource is the second uplink channel resource, and determining the channel resource includes: Determine, according to the resource indication information, a fifth uplink channel resource indicated by the resource indication information from the first uplink channel resource set and a sixth uplink channel resource indicated by the resource indication information from the second uplink channel resource set; determine that the second downlink subframe set includes only downlink subframes in the second subset and not belonging to the first subset; and determine that the sixth uplink channel resource is the second uplink channel resource; or Determine that the second downlink subframe set includes only downlink subframes in the second subset and not belonging to the first subset; and determine the second uplink channel resource indicated by the resource indication information from the second uplink channel resource set according to the state of the resource indication information; or Determine, according to the resource indication information, a fifth uplink channel resource indicated by the resource indication information from the first uplink channel resource set and a sixth uplink channel resource indicated by the resource indication information from the second uplink channel resource set; determine that the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset; and determine that the sixth uplink channel resource is the second uplink channel resource; or Determine that the second downlink subframe set includes the downlink subframes in the first subset and the downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset; and determine, based on the resource indication information, the second uplink channel resource indicated by the resource indication information from the second uplink channel resource set.

44. The method of claim 32, wherein: Before determining the channel resources, the following steps are also required: Acquire a first uplink channel resource set and a second uplink channel set pre-configured by the access network device, wherein the first uplink channel resource is an uplink channel resource in the first uplink channel resource set, and the second uplink channel resource is an uplink channel resource in the second uplink channel resource set; The downlink control information includes resource indication information, the state of the resource indication information includes a first state set and a second state set, the first state set indicates uplink channel resources in the first uplink channel resource set, the second state set indicates uplink channel resources in the second uplink channel resource set, and the first state set and the second state set are disjoint; Determine channel resources, including: In a case where the second downlink subframe set is a subset of the first subset, the second uplink channel resource indicated by the resource indication information is determined from the second uplink channel resource set according to the resource indication information.

45. The method of claim 32, wherein: Part of the time-frequency resources of the first uplink channel resources corresponding to the p-codebook size channel format overlaps with part of the time-frequency resources of the second uplink channel resources corresponding to the q-codebook size channel format; or The time-frequency resources of the first uplink channel resources corresponding to the p-codebook size channel format are part of the time-frequency resources of the second uplink channel resources corresponding to the q-codebook size channel format; The p-codebook size channel format and the q-codebook size channel format with overlapping time-frequency resources use orthogonal codes.

46. ​​The method of claim 32, wherein: Before determining the channel resources, the method further includes: determining a first subset and a second subset according to a pre-configuration.

47. The method of claim 46, wherein: The pre-configuration is independently configured for different uplink subframes.

48. A method for receiving feedback information, characterized in that: include: Sending downlink control information to user equipment UE; Sending a data channel scheduled by the downlink control information to the UE; Determine an uplink subframe for receiving feedback information corresponding to the data channel, wherein a first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, the first subset includes at least two downlink subframes, and the first subset is a true subset of the second subset; Determine a channel resource, wherein the channel resource is a first uplink channel resource or a second uplink channel resource, the first uplink channel resource corresponds to the first subset, and the second uplink channel resource corresponds to the second subset; The feedback information sent through a channel format is received on the channel resource in the uplink subframe, wherein the channel format is a p-codebook size channel format or a q-codebook size channel format, and the feedback information sent through a channel format is received on the channel resource in the uplink subframe, including: receiving the feedback information in a p-codebook size channel format on the first uplink channel resource, or receiving the feedback information in a q-codebook size channel format on the second uplink channel resource, where p and q are natural numbers, and q>p.

49. The method of claim 48, wherein: Sending the data channel scheduled by the downlink control information to the UE includes: sending the data channel scheduled by the downlink control information in a downlink subframe included in the second downlink subframe set; in, In a case where the second downlink subframe set is a subset of the first subset, the determined channel resource is the first uplink channel resource; or, In a case where the second downlink subframe set includes only downlink subframes in the second subset and not belonging to the first subset, the determined channel resource is the second uplink channel resource; or, When the second downlink subframe set includes downlink subframes in the first subset and downlink subframes in the second subset but not belonging to the first subset, but does not include downlink subframes outside the first subset and the second subset, the determined channel resource is the second uplink channel resource.

50. The method of claim 48, wherein: The channel resources occupied by the p-codebook size channel format include n resource units, and the channel resources occupied by the q-codebook size channel format include m resource units, where m and n are natural numbers, and m is greater than or equal to n.

51. The method of claim 49, wherein: The downlink control information includes resource indication information, and the resource indication information is used to indicate the first uplink channel resource or the second uplink channel resource used to carry the feedback information.

52. The method of claim 51, wherein: Before determining the channel resources, the following steps are also required: Send information of a second uplink channel resource set to the UE, wherein the second uplink channel resource is an uplink channel resource in the second uplink channel resource set, partial resources of each uplink channel resource in the multiple uplink channel resources in the second uplink channel resource set constitute a first uplink channel resource set, and the first uplink channel resource is an uplink channel resource in the first uplink channel resource set.

53. The method of claim 52, wherein: The determined channel resource is the first uplink channel resource, the resource indication information indicates an uplink channel resource in the second uplink channel resource set that includes the first uplink channel resource, or the resource indication information indicates the first uplink channel resource in the first uplink channel resource set; or The determined channel resource is the second uplink channel resource, and the resource indication information indicates the second uplink channel resource in the second uplink channel resource set.

54. The method of claim 53, wherein: The resource indication information indicates the uplink channel resources in the second uplink channel resource set including the first uplink channel resources; Determine channel resources, including: A first uplink channel resource among the uplink channel resources indicated by the resource indication information is determined according to the identification information or pre-configuration information of the UE.

55. The method of claim 51, wherein: Before determining the channel resources, the following steps are also required: Sending information of a first uplink channel resource set and information of a second uplink channel set to the UE, wherein the first uplink channel resource is an uplink channel resource in the first uplink channel resource set, and the second uplink channel resource is an uplink channel resource in the second uplink channel resource set.

56. The method of claim 55, wherein: The first state set of the resource indication information indicates uplink channel resources in the first uplink channel resource set, and the second state set of the resource indication information indicates uplink channel resources in the second uplink channel resource set. The first state set and the second state set are disjoint.

57. The method of claim 55, wherein: The state of the resource indication information indicates the uplink channel resources in the first uplink channel resource set and / or the uplink channel resources in the second uplink channel resource set.

58. The method of claim 52, wherein: Receiving the feedback information sent through the channel format on the channel resource in the uplink subframe includes: receiving the feedback information sent through the q-codebook size channel format on the second uplink channel resource indicated by the resource indication information in the uplink subframe.

59. The method of claim 58, wherein: After receiving the feedback information sent in a channel format on the channel resource in the uplink subframe, the method further includes: determining, according to the identification information or pre-configuration information of the UE, a first uplink channel resource in the second uplink channel resource, and receiving, on the first uplink channel resource, the feedback information sent in the p-codebook size channel format; or, A first uplink channel resource in the first uplink channel resources is determined according to the resource indication information, and the feedback information sent through the p-codebook size channel format is received on the first uplink channel resource.

60. The method of claim 48, wherein: Part of the time-frequency resources of the first uplink channel resources corresponding to the p-codebook size channel format overlaps with part of the time-frequency resources of the second uplink channel resources corresponding to the q-codebook size channel format; or The time-frequency resources of the first uplink channel resources corresponding to the p-codebook size channel format are part of the time-frequency resources of the second uplink channel resources corresponding to the q-codebook size channel format; The p-codebook size channel format and the q-codebook size channel format with overlapping time-frequency resources use orthogonal codes.

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