CN106550464B - Method, device and system for transmitting uplink control information - Google Patents
Method, device and system for transmitting uplink control information Download PDFInfo
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- CN106550464B CN106550464B CN201510609034.5A CN201510609034A CN106550464B CN 106550464 B CN106550464 B CN 106550464B CN 201510609034 A CN201510609034 A CN 201510609034A CN 106550464 B CN106550464 B CN 106550464B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
Abstract
The embodiment of the invention discloses a method, a device and a system for transmitting uplink control information, which not only can simplify the design of a hybrid automatic repeat request (HARQ) time sequence, but also can avoid the interference of the uplink control information from downlink data of an adjacent cell. The method comprises the following steps: the user equipment determines subframe configuration information; wherein the subframe configuration information includes: position information of a downlink subframe, a flexible subframe and/or an uplink subframe in the subframe set; determining N first subframes from a subframe set indicated by the subframe configuration information; the first subframe is a flexible subframe and/or an uplink subframe in a subframe set indicated by the subframe configuration information; wherein N is a positive integer; and sending uplink control information on the first subframe.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a method, an apparatus, and a system for transmitting uplink control information.
Background
In a Time Division Duplex (TDD) system of Long Term Evolution (LTE), each radio frame includes 10 subframes, each subframe has a length of 1 ms, and uplink and downlink links respectively use different subframes. In order to adapt to different application scenarios, the LTE TDD system may use different uplink and downlink subframe ratios according to service conditions, so as to meet different uplink and downlink asymmetric service requirements. However, in an ultra-dense network, the density of base stations is high, and the number of users served by each small base station is small, so that the ratio of uplink and downlink service loads of each cell changes rapidly, and the ratio of static or semi-static uplink and downlink subframes to the ratio of uplink and downlink service loads cannot be well matched, thereby causing the resource to be inefficiently utilized.
The problem can be well solved by the dynamic and flexible subframe ratio, namely, the uplink and downlink service load ratio can be matched more quickly and accurately by configuring the dynamic and flexible subframe ratio. However, the dynamic and flexible subframe allocation also brings more complicated Hybrid Automatic Repeat reQuest (HARQ) timing design. Because the uplink and downlink ratio is not fixed, when a User Equipment (UE) feeds back an uplink Acknowledgement Character (ACK)/Negative Acknowledgement Character (NACK), the UE needs to wait for an uplink subframe, and the uplink subframe is uncertain, so the UE needs more storage space for buffering data, or the UE cannot report ACK/NACK in time, thereby affecting downlink transmission.
In addition, if the neighboring cells adopt different subframe configurations, severe uplink and downlink interference may occur on subframes with different configurations. As shown in fig. 1, D denotes a downlink subframe, U denotes an uplink subframe, and when the subframe configurations of the two cells are different, taking subframe 3 in fig. 1 as an example, subframe 3 of cell 1 is a bit uplink subframe, and subframe 3 of cell 2 is a downlink subframe, the downlink signal of cell 2 will cause serious interference to the uplink signal of cell 1.
Disclosure of Invention
Embodiments of the present invention provide a method, an apparatus, and a system for transmitting uplink control information, which not only can simplify HARQ timing design, but also can avoid interference of uplink control information from downlink data of an adjacent cell.
The embodiment of the invention adopts the following technical scheme:
a method for transmitting uplink control information includes:
the user equipment determines subframe configuration information; wherein the subframe configuration information includes: position information of a downlink subframe, a flexible subframe and/or an uplink subframe in the subframe set;
determining N first subframes from a subframe set indicated by the subframe configuration information; the first subframe is a flexible subframe and/or an uplink subframe in a subframe set indicated by the subframe configuration information; wherein N is a positive integer;
and sending uplink control information on the first subframe.
The determining, by the ue, subframe configuration information specifically includes:
the user equipment determines the subframe configuration information according to preset first configuration information or according to first indication information sent by the base station.
Wherein the first indication information is sent by the base station in a broadcast or unicast mode through high-layer signaling or dynamic signaling.
Determining N first subframes from the subframe set indicated by the subframe configuration information, specifically including:
and determining N first subframes from a subframe set indicated by the subframe configuration information according to preset second configuration information or second indication information sent by the base station.
Wherein the second indication information is sent by the base station in a broadcast or unicast mode through high-layer signaling.
Wherein, the value of N is determined according to one of the following modes:
the value of N is determined according to the load of the uplink control information; or
And the value of N is determined according to the service requirement time delay of the user equipment.
When the value of N is determined according to the required delay of the service of the ue, the positions of the N first subframes in the subframe set indicated by the subframe configuration information are determined as follows:
when the N is larger than a preset value, the positions of the N first subframes in the subframe set indicated by the subframe configuration information are discontinuous.
Wherein the uplink control information includes at least one of the following information:
and the ACK/NACK indication information, the channel state information, the scheduling request information, the sounding reference signal and the random access channel corresponding to the downlink data.
The uplink control information is ACK/NACK indication information corresponding to downlink data, and the downlink data is sent in a subframe k; then
Transmitting uplink control information on the first subframe, specifically including:
transmitting the uplink control information on a first subframe appearing first after the subframe k + m; wherein k and m are positive integers.
Wherein the first subframe comprises an uplink subframe; then
The first subframe, which is an uplink subframe, is used by the user equipment and other user equipments of the cell in which the user equipment is located to transmit uplink data.
Wherein the first subframe comprises a flexible subframe; then
A first subframe which is a flexible subframe is transmitted by the user equipment and other user equipment users of a cell in which the user equipment is located; or
The first subframe, which is a flexible subframe, is used by the base station to transmit downlink data when any user equipment is not used to transmit uplink control information.
A method for transmitting uplink control information includes:
the base station determines subframe configuration information; wherein the subframe configuration information includes: position information of a downlink subframe, a flexible subframe and/or an uplink subframe in the subframe set;
determining N first subframes from a subframe set indicated by the subframe configuration information; the first subframe is a flexible subframe and/or an uplink subframe in a subframe set indicated by the subframe configuration information; wherein N is a positive integer;
and receiving uplink control information sent by the user equipment on the first subframe.
The base station determines subframe configuration information, and specifically includes:
and the base station determines the subframe configuration information according to the preset third configuration information or according to the uplink and downlink service load or according to the service requirement time delay.
After determining the subframe configuration information, the base station further includes:
the base station sends first indication information to user equipment, so that the user equipment can determine subframe configuration information according to the first indication information.
Determining N first subframes from the subframe set indicated by the subframe configuration information, specifically including:
and determining N first subframes from a subframe set indicated by the subframe configuration information according to preset fourth configuration information, or according to the load of uplink and downlink control information or according to the service requirement delay.
After determining N first subframes from the subframe set indicated by the subframe configuration information, the method further includes:
and the base station sends second indication information to the user equipment, so that the user equipment can determine N first subframes from the subframe set indicated by the subframe configuration information according to the second indication information.
Wherein, the value of N is determined according to the following mode:
the value of N is determined according to the load of the uplink control information; or
And the value of N is determined according to the service requirement time delay of the user equipment.
When the value of N is determined according to the required delay of the service of the ue, the positions of the N first subframes in the subframe set indicated by the subframe configuration information are determined as follows:
when the N is larger than a preset value, the positions of the N first subframes in the subframe set indicated by the subframe configuration information are discontinuous.
A user equipment, comprising:
a subframe configuration information determining unit for determining subframe configuration information; wherein the subframe configuration information includes: position information of a downlink subframe, a flexible subframe and/or an uplink subframe in the subframe set;
a first subframe determining unit, configured to determine N first subframes from a subframe set indicated by the subframe configuration information determined by the subframe configuration information determining unit; the first subframe is a flexible subframe and/or an uplink subframe in a subframe set indicated by the subframe configuration information; wherein N is a positive integer;
a sending unit, configured to send uplink control information on the first subframe determined by the first subframe determining unit.
Wherein, the value of N is determined according to one of the following modes:
the value of N is determined according to the load of the uplink control information; or
And the value of N is determined according to the service requirement time delay of the user equipment.
When the value of N is determined according to the required delay of the service of the ue, the positions of the N first subframes in the subframe set indicated by the subframe configuration information are determined as follows:
when the N is larger than a preset value, the positions of the N first subframes in the subframe set indicated by the subframe configuration information are discontinuous.
Wherein the uplink control information includes at least one of the following information:
and the ACK/NACK indication information, the channel state information, the scheduling request information, the sounding reference signal and the random access channel corresponding to the downlink data.
The uplink control information is ACK/NACK indication information corresponding to downlink data, and the downlink data is sent in a subframe k; then
The sending unit is specifically configured to:
transmitting the uplink control information on a first subframe appearing first after the subframe k + m; wherein k and m are positive integers.
Wherein the first subframe comprises an uplink subframe; then
The first subframe, which is an uplink subframe, is used by the user equipment and other user equipments of the cell in which the user equipment is located to transmit uplink data.
Wherein the first subframe comprises a flexible subframe; then
A first subframe which is a flexible subframe is transmitted by the user equipment and other user equipment users of a cell in which the user equipment is located; or
The first subframe, which is a flexible subframe, is used by the base station to transmit downlink data when any user equipment is not used to transmit uplink control information.
A base station, comprising:
a subframe configuration information determining unit for determining subframe configuration information; wherein the subframe configuration information includes: position information of a downlink subframe, a flexible subframe and/or an uplink subframe in the subframe set;
a first subframe determining unit, configured to determine N first subframes from a subframe set indicated by the subframe configuration information determined by the subframe configuration information determining unit; the first subframe is a flexible subframe and/or an uplink subframe in a subframe set indicated by the subframe configuration information; wherein N is a positive integer;
a receiving unit, configured to receive, on the first subframe determined by the first subframe determining unit, uplink control information sent by the user equipment.
Wherein, the value of N is determined according to the following mode:
the value of N is determined according to the load of the uplink control information; or
And the value of N is determined according to the service requirement time delay of the user equipment.
When the value of N is determined according to the required delay of the service of the ue, the positions of the N first subframes in the subframe set indicated by the subframe configuration information are determined as follows:
when the N is larger than a preset value, the positions of the N first subframes in the subframe set indicated by the subframe configuration information are discontinuous.
A transmission system of uplink control information, comprising the user equipment and the base station.
The embodiment of the invention has the following beneficial effects:
in the embodiment of the invention, the user equipment determines the subframe configuration information, determines N first subframes from a subframe set indicated by the subframe configuration information, wherein the first subframes are flexible subframes and/or uplink subframes in the subframe set indicated by the subframe configuration information, and then sends the uplink control information on the first subframes. According to the technical scheme of the embodiment of the invention, the uplink control information is fixed on the first subframe for transmission, so that the HARQ time sequence design is simplified, and when two adjacent cells adopt different subframe configurations, the two cells transmit the uplink control information through the first subframe, so that the interference between uplink and downlink does not exist.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic diagram illustrating a specific uplink and downlink subframe configuration of a cell 1 and a cell 2 in a certain period of time in the prior art;
fig. 2 is a flowchart illustrating an implementation of a method for transmitting uplink control information implemented by a user equipment according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating an implementation of a method for transmitting uplink control information implemented by a base station according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a specific uplink and downlink subframe configuration of a cell 1 and a cell 2 in a certain period of time according to an embodiment of the present invention;
fig. 5 is a schematic diagram illustrating a transmission method of uplink control information according to an embodiment of the present invention;
fig. 6 is a schematic diagram illustrating a transmission method of uplink control information in the prior art;
fig. 7 is a schematic structural diagram of a user equipment according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a base station according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a transmission system of uplink control information according to an embodiment of the present invention.
Detailed Description
In order to solve the problems in the prior art, embodiments of the present invention provide a transmission scheme for uplink control information. In the technical scheme, the user equipment determines subframe configuration information, determines N first subframes from a subframe set indicated by the subframe configuration information, wherein the first subframes are flexible subframes and/or uplink subframes in the subframe set indicated by the subframe configuration information, and then sends uplink control information on the first subframes. According to the technical scheme of the embodiment of the invention, the uplink control information is fixed on the first subframe for transmission, so that the HARQ time sequence design is simplified, and when two adjacent cells adopt different subframe configurations, the two cells transmit the uplink control information through the first subframe, so that the interference between uplink and downlink does not exist.
The "base station" mentioned in the embodiments of the present invention may be, but is not limited to, any of the following: a base station corresponding to a cell, an enhanced base station (eNodeB), a micro base station, a home base station, a Remote Radio Unit (RRU), a Remote Radio Head (RRH), a relay node, and a set made of the above entities.
The embodiments of the present invention will be described in conjunction with the drawings of the specification, and it should be understood that they are presented herein only for the purpose of illustrating and explaining the invention, and not for the purpose of limiting the invention. And embodiments of the invention and features of the embodiments may be combined with each other without conflict.
An embodiment of the present invention provides a method for transmitting uplink control information, as shown in fig. 2, which is a flowchart for implementing the method, where an execution subject of the method may be a UE, and the method specifically includes the following steps:
The flexible subframe may be an uplink subframe, a downlink subframe, or a mixed uplink and downlink subframe (that is, the flexible subframe includes downlink information and uplink information at the same time).
Specifically, the UE may determine the subframe configuration information according to the preset first configuration information, or may determine the subframe configuration information according to the first indication information sent by the base station.
Optionally, the first indication information may be sent by the base station in a broadcast or unicast manner through higher layer signaling or dynamic signaling.
For example, one subframe set includes 5 subframes, and the base station may configure the 5 subframes into a dxxu format, where D denotes a downlink subframe, X denotes a flexible subframe, and U denotes an uplink subframe, where the UE receives a downlink signal transmitted by the base station on the first subframe, transmits an uplink signal on the fifth subframe, and receives a downlink signal or transmits an uplink signal on the second, third, and fourth subframes; alternatively, the base station may configure the 5 subframes into a DXXXX format, where the UE receives a downlink signal transmitted by the base station in a first subframe, and receives a downlink signal or transmits an uplink signal in a second, third, fourth, or fifth subframe.
Specifically, the UE may determine N first subframes from the subframe set indicated by the subframe configuration information according to preset second configuration information, or may determine N first subframes from the subframe set indicated by the subframe configuration information according to second indication information sent by the base station.
Optionally, the second indication information may be sent by the base station in a broadcast or unicast manner through higher layer signaling.
Optionally, the second indication information may indicate the first subframe in the subframe set by using a bitmap (bit map) manner. For example, one subframe set includes 5 subframes, and the second indication information may be configured in the form of 00001 to indicate that the fifth subframe in the subframe set is the first subframe, or the second indication information may be configured in the form of 00101 to indicate that the third subframe and the fifth subframe in the subframe set are the first subframe.
In addition, the value of N can be determined in one of the following ways:
1. and the value of N is determined according to the load of the uplink control information.
Specifically, the corresponding relationship between the load of the uplink control information and N may be preset, and after the load of the uplink control information is determined, the corresponding N value is determined.
The corresponding relationship between the load of the uplink control information and N may be set according to the following rule:
if the load of the uplink control information is heavier, the value of N is larger; if the load of the uplink control information is light, the value of N is small. In specific implementation, different intervals may be set for the load of the uplink control information, and each interval corresponds to one N value.
2. The value of N is determined according to the service requirement time delay of the UE.
Specifically, the correspondence between the service requirement delay of the UE and N may be preset, and after the service requirement delay of the UE is determined, the corresponding N value is determined.
The correspondence between the service requirement delay of the UE and N may be set according to the following rule:
if the service requirement time delay of the UE is smaller, the value of N is larger; if the service requirement time delay of the UE is larger, the value of N is smaller. In specific implementation, different intervals may be set for the required delay of the service of the UE, and each interval corresponds to one N value.
In addition, when the value of N is determined according to the required delay of the service of the UE, the positions of the N first subframes in the subframe set indicated by the subframe configuration information may be determined as follows:
and when the determined N is larger than the preset value, the positions of the N first subframes in the subframe set indicated by the subframe configuration information are discontinuous.
Optionally, when the determined N is not greater than the preset data, positions of the N first subframes in the subframe set indicated by the subframe configuration information may be continuous or discontinuous.
For example, one subframe set includes 5 subframes, and the UE may pre-define the last N subframes in the subframe set as the first subframes; or the base station may configure the last N of the 5 subframes as the first subframe; or the base station may configure a third subframe and a fifth subframe of the 5 subframes into the first subframe.
And step 23, the UE sends uplink control information on the determined first subframe.
The uplink control information may include at least one of the following:
the ACK/NACK information, the Channel State Information (CSI), the scheduling Request information (SR), the sounding reference signal, and the random access Channel corresponding to the downlink data.
When the uplink control information is ACK/NACK indication information corresponding to the downlink data and the downlink data is sent in a subframe k, sending the uplink control information on a first subframe may specifically include:
sending uplink control information on a first subframe appearing first after the subframe k + m; wherein k and m are positive integers.
That is, if the subframe number corresponding to the first subframe for transmitting the ACK/NACK indication information is i, the ACK/NACK indication information transmitted on the first subframe corresponds to a certain downlink subframe or downlink subframes before the i-m th subframe or downlink data transmitted on a flexible subframe for transmitting downlink data. Where m is a positive integer, such as m-4.
In addition, when the first subframe includes an uplink subframe, the first subframe as the uplink subframe may be used by the UE and other UEs of the cell in which the UE is located to transmit uplink data, in addition to the UE transmitting uplink control information.
When the first subframe comprises a flexible subframe, the first subframe as the flexible subframe can be used by the UE and other UEs of a cell in which the UE is located to transmit uplink data besides uplink control information transmitted by the UE; or the first subframe as the flexible subframe may be used by the base station to transmit downlink data when the first subframe is not used by any UE to transmit uplink control information; or the first subframe as the flexible subframe may be used by the UE and other UEs in the cell where the UE is located to receive downlink information, in addition to uplink control information transmitted by the UE.
According to the technical scheme of the embodiment of the invention, the uplink control information is fixed on the first subframe for transmission, so that the HARQ time sequence design is simplified, and when two adjacent cells adopt different subframe configurations, the two cells transmit the uplink control information through the first subframe, so that the interference between uplink and downlink does not exist.
Based on the same inventive concept, an embodiment of the present invention further provides a method for transmitting uplink control information, as shown in fig. 3, which is a flowchart for implementing the method, where an execution subject of the method may be a base station, and the method specifically includes the following steps:
The flexible subframe may be an uplink subframe, a downlink subframe, or a mixed uplink and downlink subframe (that is, the flexible subframe includes downlink information and uplink information at the same time).
Specifically, the base station may determine the subframe configuration information according to the preset third configuration information, or according to the uplink and downlink service load, or according to the service requirement delay.
With reference to the uplink control information transmission method implemented by the UE side, if the UE determines the subframe configuration information according to the pre-configured first configuration information, the base station determines the subframe configuration information according to the third indication information sent by the UE; if the UE determines the subframe configuration information according to the first indication information sent by the base station, after determining the subframe configuration information, the base station may further include: the base station sends first indication information to the user equipment, so that the user equipment can determine subframe configuration information according to the first indication information.
Specifically, the base station determines N first subframes from a subframe set indicated by the subframe configuration information according to preset fourth configuration information, or according to the load of uplink and downlink control information, or according to the required delay of the service.
Optionally, the fourth indication information may indicate the first subframe in the subframe set by using a bitmap (bit map) manner. For example, one subframe set includes 5 subframes, the fourth indication information may be configured in the form of 00001 to indicate that the fifth subframe in the subframe set is the first subframe, or the second indication information may be configured in the form of 00101 to indicate that the third subframe and the fifth subframe in the subframe set are the first subframe.
With reference to the uplink control information transmission method implemented by the UE side, if the UE determines N first subframes according to the second configuration information configured in advance, the base station determines N first subframes according to fourth indication information sent by the UE; if the UE determines N first subframes according to the second indication information sent by the base station, the base station may further determine, from the set of subframes indicated by the subframe configuration information, after the N first subframes, the method may further include: and the base station sends second indication information to the user equipment, so that the user equipment can determine N first subframes from the subframe set indicated by the subframe configuration information according to the second indication information.
In addition, the value of N is the same as the implementation process of the value of N in the transmission method of the uplink control information implemented by the UE side, and is not described herein again.
And step 33, the base station receives the uplink control information sent by the UE on the determined first subframe.
The uplink control information may include at least one of the following:
and the ACK/NACK indication information, CSI, SR, the sounding reference signal and the random access channel corresponding to the downlink data.
According to the technical scheme of the embodiment of the invention, the uplink control information is fixed on the first subframe for transmission, so that the HARQ time sequence design is simplified, and when two adjacent cells adopt different subframe configurations, the two cells transmit the uplink control information through the first subframe, so that the interference between uplink and downlink does not exist.
For a better understanding of the embodiments of the present invention, the following description is provided for a specific implementation of the embodiments of the present invention.
Assuming that one subframe set comprises 5 subframes, the UE determines the subframe configuration as dxxu (refer to the above embodiments of the present invention for specific meaning) in a predefined or base station configuration manner. In the scenario of fig. 1, there are two cells, where the specific uplink and downlink subframe configurations of cell 1 and cell 2 in a certain period of time are shown in fig. 4. The UE determines the last subframe in the subframe set as a first subframe through a predefined or base station configuration mode, and uplink control information sent by the UE on the first subframe is ACK/NACK indication information corresponding to downlink data.
As shown in fig. 5 and fig. 6, which are schematic diagrams of a transmission method of uplink control information according to an embodiment of the present invention and a transmission method of uplink control information in the prior art respectively.
Referring to fig. 5, according to the method in the embodiment of the present invention, the ACK/NACK indication information corresponding to the first three downlink subframes of the two cells in fig. 5 is sent on the first subframe indicated by the solid line. At this time, the subframes in which the two cells transmit the uplink control information are the same, and there is no interference between uplink and downlink in the subframes shown in fig. 1.
Referring to fig. 6, according to the method in the prior art, subframes for two cells to transmit uplink control information are subframes indicated by dotted lines, in which case subframes for two cells to transmit uplink control information may be different, and there may be interference (for example, subframes indicated by arrows) of uplink control information of one cell by downlink data of another cell.
Therefore, the technical scheme provided by the embodiment of the invention can avoid the interference of the uplink control channel from the downlink data of the adjacent cell.
Furthermore, the HARQ design of the present invention is also simpler compared to existing schemes. Specifically, the number of HARQ processes in the invention can be fixed, thereby simplifying the protocol and simplifying the complexity of terminal implementation. In this example, assuming that m is 4 in the above embodiment, the number of HARQ processes may be fixed to 10. Generally, assuming that the subframe set includes L subframes, and assuming that the last 1 subframe is the first subframe, the number of HARQ processes may be fixed to L +2 × M-3.
Based on the same inventive concept, embodiments of the present invention also provide a user equipment, a base station, and a transmission system for uplink control information, respectively, and because the principles of solving the problems of the above-mentioned devices and systems are similar to the transmission method for uplink control information implemented by the terminal side and the transmission method for uplink control information implemented by the base station side, the implementation of the devices and systems can refer to the implementation of the methods, and repeated parts are not described again.
As shown in fig. 7, a schematic structural diagram of a user equipment provided in an embodiment of the present invention includes:
a subframe configuration information determining unit 71 configured to determine subframe configuration information; wherein the subframe configuration information includes: position information of a downlink subframe, a flexible subframe and/or an uplink subframe in the subframe set;
a first subframe determination unit 72 configured to determine N first subframes from the subframe set indicated by the subframe configuration information determined by the subframe configuration information determination unit 71; the first subframe is a flexible subframe and/or an uplink subframe in a subframe set indicated by the subframe configuration information; wherein N is a positive integer;
a sending unit 73, configured to send uplink control information on the first subframe determined by the first subframe determining unit 72.
The subframe configuration information determining unit 71 is specifically configured to:
and determining subframe configuration information according to preset first configuration information or first indication information sent by the base station.
Wherein the first indication information is sent by the base station in a broadcast or unicast mode through high-layer signaling or dynamic signaling.
The first subframe determining unit 72 is specifically configured to:
and determining N first subframes from a subframe set indicated by the subframe configuration information according to preset second configuration information or second indication information sent by the base station.
Wherein the second indication information is sent by the base station in a broadcast or unicast mode through high-layer signaling.
Wherein, the value of N is determined according to one of the following modes:
the value of N is determined according to the load of the uplink control information; or
And the value of N is determined according to the service requirement time delay of the user equipment.
When the value of N is determined according to the required delay of the service of the ue, the positions of the N first subframes in the subframe set indicated by the subframe configuration information are determined as follows:
when the N is larger than a preset value, the positions of the N first subframes in the subframe set indicated by the subframe configuration information are discontinuous.
Wherein the uplink control information includes at least one of the following information:
and the ACK/NACK indication information, the channel state information, the scheduling request information, the sounding reference signal and the random access channel corresponding to the downlink data.
The uplink control information is ACK/NACK indication information corresponding to downlink data, and the downlink data is sent in a subframe k; then
The sending unit 73 is specifically configured to:
transmitting the uplink control information on a first subframe appearing first after the subframe k + m; wherein k and m are positive integers.
Wherein the first subframe comprises an uplink subframe; then
The first subframe, which is an uplink subframe, is used by the user equipment and other user equipments of the cell in which the user equipment is located to transmit uplink data.
Wherein the first subframe comprises a flexible subframe; then
A first subframe which is a flexible subframe is transmitted by the user equipment and other user equipment users of a cell in which the user equipment is located; or
The first subframe, which is a flexible subframe, is used by the base station to transmit downlink data when any user equipment is not used to transmit uplink control information.
For convenience of description, the above parts are separately described as modules (or units) according to functional division. Of course, the functionality of the various modules (or units) may be implemented in the same or in multiple pieces of software or hardware in practicing the invention.
As shown in fig. 8, a schematic structural diagram of a base station provided in an embodiment of the present invention includes:
a subframe configuration information determining unit 81 configured to determine subframe configuration information; wherein the subframe configuration information includes: position information of a downlink subframe, a flexible subframe and/or an uplink subframe in the subframe set;
a first subframe determining unit 82, configured to determine N first subframes from the subframe set indicated by the subframe configuration information determined by the subframe configuration information determining unit 81; the first subframe is a flexible subframe and/or an uplink subframe in a subframe set indicated by the subframe configuration information; wherein N is a positive integer;
a receiving unit 83, configured to receive the uplink control information sent by the user equipment on the first subframe determined by the first subframe determining unit 82.
The subframe configuration information determining unit 81 is specifically configured to:
and determining the subframe configuration information according to preset third configuration information or according to uplink and downlink service loads or according to the service requirement time delay.
The first subframe determining unit 82 is specifically configured to:
and determining N first subframes from a subframe set indicated by the subframe configuration information according to preset fourth configuration information, or according to the load of uplink and downlink control information or according to the service requirement delay.
Wherein, the value of N is determined according to the following mode:
the value of N is determined according to the load of the uplink control information; or
And the value of N is determined according to the service requirement time delay of the user equipment.
When the value of N is determined according to the required delay of the service of the ue, the positions of the N first subframes in the subframe set indicated by the subframe configuration information are determined as follows:
when the N is larger than a preset value, the positions of the N first subframes in the subframe set indicated by the subframe configuration information are discontinuous.
For convenience of description, the above parts are separately described as modules (or units) according to functional division. Of course, the functionality of the various modules (or units) may be implemented in the same or in multiple pieces of software or hardware in practicing the invention.
As shown in fig. 9, a schematic structural diagram of a transmission system of uplink control information according to an embodiment of the present invention includes the user equipment 91 and the base station 92.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (22)
1. A method for transmitting uplink control information, comprising:
the user equipment determines subframe configuration information; wherein the subframe configuration information includes: position information of a downlink subframe, a flexible subframe and/or an uplink subframe in the subframe set;
determining N first subframes from a subframe set indicated by the subframe configuration information; the first subframe is a flexible subframe and/or an uplink subframe in a subframe set indicated by the subframe configuration information; the value of N is determined according to the service requirement time delay of the UE, different intervals are set for the service requirement time delay of the UE, each interval corresponds to an N value, and N is a positive integer;
and sending uplink control information on the first subframe.
2. The method of claim 1, wherein the determining, by the ue, the subframe configuration information specifically includes:
the user equipment determines the subframe configuration information according to preset first configuration information or according to first indication information sent by the base station.
3. The method of claim 2, wherein the first indication information is transmitted by the base station in a broadcast or unicast manner through higher layer signaling or dynamic signaling.
4. The method of claim 1, wherein determining N first subframes from the set of subframes indicated by the subframe configuration information specifically comprises:
and determining N first subframes from a subframe set indicated by the subframe configuration information according to preset second configuration information or second indication information sent by the base station.
5. The method of claim 4, wherein the second indication information is transmitted by the base station in a broadcast or unicast manner through higher layer signaling.
6. The method of claim 1, wherein when the value of N is determined according to a required delay of a service of the ue, positions of the N first subframes in a subframe set indicated by the subframe configuration information are determined as follows:
when the N is larger than a preset value, the positions of the N first subframes in the subframe set indicated by the subframe configuration information are discontinuous.
7. The method of claim 1, wherein the uplink control information comprises at least one of:
and the ACK/NACK indication information, the channel state information, the scheduling request information, the sounding reference signal and the random access channel corresponding to the downlink data.
8. The method of claim 7, wherein the uplink control information is ACK/NACK indication information corresponding to downlink data, and the downlink data is sent in a subframe k; then
Transmitting uplink control information on the first subframe, specifically including:
transmitting the uplink control information on a first subframe appearing first after the subframe k + m; wherein k and m are positive integers.
9. The method of claim 1, wherein the first subframe comprises an uplink subframe; then
The first subframe, which is an uplink subframe, is used by the user equipment and other user equipments of the cell in which the user equipment is located to transmit uplink data.
10. The method of claim 1, wherein the first subframe comprises a flexible subframe; then
A first subframe which is a flexible subframe is transmitted by the user equipment and other user equipment users of a cell in which the user equipment is located; or
The first subframe, which is a flexible subframe, is used by the base station to transmit downlink data when any user equipment is not used to transmit uplink control information.
11. A method for transmitting uplink control information, comprising:
the base station determines subframe configuration information; wherein the subframe configuration information includes: position information of a downlink subframe, a flexible subframe and/or an uplink subframe in the subframe set;
determining N first subframes from a subframe set indicated by the subframe configuration information; the first subframe is a flexible subframe and/or an uplink subframe in a subframe set indicated by the subframe configuration information; the value of N is determined according to the service requirement time delay of the UE, different intervals are set for the service requirement time delay of the UE, each interval corresponds to an N value, and N is a positive integer;
and receiving uplink control information sent by the user equipment on the first subframe.
12. The method of claim 11, wherein the base station determines the subframe configuration information, and specifically comprises:
and the base station determines the subframe configuration information according to the preset third configuration information or according to the uplink and downlink service load or according to the service requirement time delay.
13. The method of claim 11, wherein after the base station determines the subframe configuration information, further comprising:
the base station sends first indication information to user equipment, so that the user equipment can determine subframe configuration information according to the first indication information.
14. The method of claim 11, wherein after determining N first subframes from the set of subframes indicated by the subframe configuration information, further comprising:
and the base station sends second indication information to the user equipment, so that the user equipment can determine N first subframes from the subframe set indicated by the subframe configuration information according to the second indication information.
15. The method of claim 11, wherein when the value of N is determined according to a required delay of a service of the ue, positions of the N first subframes in a subframe set indicated by the subframe configuration information are determined as follows:
when the N is larger than a preset value, the positions of the N first subframes in the subframe set indicated by the subframe configuration information are discontinuous.
16. A user device, comprising:
a subframe configuration information determining unit for determining subframe configuration information; wherein the subframe configuration information includes: position information of a downlink subframe, a flexible subframe and/or an uplink subframe in the subframe set;
a first subframe determining unit, configured to determine N first subframes from a subframe set indicated by the subframe configuration information determined by the subframe configuration information determining unit; the first subframe is a flexible subframe and/or an uplink subframe in a subframe set indicated by the subframe configuration information; the value of N is determined according to the service requirement time delay of the UE, different intervals are set for the service requirement time delay of the UE, each interval corresponds to an N value, and N is a positive integer;
a sending unit, configured to send uplink control information on the first subframe determined by the first subframe determining unit.
17. The ue of claim 16, wherein when the value of N is determined according to a required delay of a service of the ue, positions of the N first subframes in a subframe set indicated by the subframe configuration information are determined as follows:
when the N is larger than a preset value, the positions of the N first subframes in the subframe set indicated by the subframe configuration information are discontinuous.
18. The user equipment of claim 16, wherein the uplink control information comprises at least one of:
and the ACK/NACK indication information, the channel state information, the scheduling request information, the sounding reference signal and the random access channel corresponding to the downlink data.
19. The UE of claim 18, wherein the uplink control information is ACK/NACK indication information corresponding to downlink data, and the downlink data is sent in a subframe k; then
The sending unit is specifically configured to:
transmitting the uplink control information on a first subframe appearing first after the subframe k + m; wherein k and m are positive integers.
20. A base station, comprising:
a subframe configuration information determining unit for determining subframe configuration information; wherein the subframe configuration information includes: position information of a downlink subframe, a flexible subframe and/or an uplink subframe in the subframe set;
a first subframe determining unit, configured to determine N first subframes from a subframe set indicated by the subframe configuration information determined by the subframe configuration information determining unit; the first subframe is a flexible subframe and/or an uplink subframe in a subframe set indicated by the subframe configuration information; the value of N is determined according to the service requirement time delay of the UE, different intervals are set for the service requirement time delay of the UE, each interval corresponds to an N value, and N is a positive integer;
a receiving unit, configured to receive, on the first subframe determined by the first subframe determining unit, uplink control information sent by the user equipment.
21. The base station of claim 20, wherein when the value of N is determined according to a required delay of a service of the ue, positions of the N first subframes in a subframe set indicated by the subframe configuration information are determined as follows:
when the N is larger than a preset value, the positions of the N first subframes in the subframe set indicated by the subframe configuration information are discontinuous.
22. A transmission system of uplink control information, comprising the user equipment according to any one of claims 16-19 and the base station according to any one of claims 20-21.
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| CN109495220B (en) * | 2017-09-11 | 2021-08-17 | 中兴通讯股份有限公司 | Data transmission method and device, user terminal and computer readable storage medium |
| CN113452478B (en) * | 2021-06-04 | 2022-07-08 | 中国联合网络通信集团有限公司 | Frame structure determining method and device |
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