WO2014172843A1

WO2014172843A1 - Method for sending channel state information, user equipment, base station, and system

Info

Publication number: WO2014172843A1
Application number: PCT/CN2013/074565
Authority: WO
Inventors: 黄曲芳; 刘文济; 张健
Original assignee: 华为技术有限公司
Priority date: 2013-04-23
Filing date: 2013-04-23
Publication date: 2014-10-30
Also published as: CN104254994B; CN104254994A

Abstract

Embodiments of the present invention provide a method and an apparatus for sending channel state information, and relate to the technical field of wireless communications. The method comprises: determining a base station where a member carrier corresponding to periodical channel state information (CSI) is located, and determining whether the member carrier of the bases station has a physical uplink shared channel (PUSCH) resource capable of carrying the CSI; and if at least one member carrier of the bases station has a PUSCH resource capable of carrying the CSI, selecting a PUSCH resource therein, and carrying the CSI in the selected PUSCH resource and sending the selected PUSCH resource. In the present invention, a PUSCH resource is selected to send periodical CSI in a case where the PUSCH resource capable of carrying the CSI exists in a base station where a member carrier corresponding to the periodical CSI is located; otherwise, a PUCCH resource is selected to send the periodical CSI, thereby improving the accuracy of the base station determining a scheduling policy, and improving the peak rate of a UE.

Description

Description Method for transmitting channel state information, user equipment, base station and system

The present invention relates to the field of wireless communication technologies, and in particular, to a method for transmitting channel state information, a user equipment, a base station, and a system. Background technique

In order to improve the peak rate of the UE (User Equipment), the LTE (Long Time Evolution) network introduces a carrier aggregation technology in which the base station configures multiple component carriers to the same UE. In order to assist the scheduling of the component carrier of the base station, the UE needs to report the CSI (Channel State Information) of each component carrier. The CSI of the component carrier is as follows: The CSI is periodically transmitted by the base station for its assigned PUCCH (Physical Uplink Control Channel), or the PUSCH allocated by the base station (Physical Uplink Shared) Channel, physical uplink shared channel) carries the CSI. Therefore, selecting an effective and reasonable CSI transmission mode can assist the base station to determine an accurate scheduling decision in time and improve the peak rate of the UE.

In the prior art, the UE selects the primary cell base station to carry the CSI for the allocated PUSCH resource. If there is no PUSCH resource allocated by the base station of the primary cell, the base station that selects the secondary cell carries the CSI for the allocated PUSCH resource carrying. If there is no PUSCH resource allocated by the base station of the primary cell, and there is no PUSCH resource allocated by the base station of the secondary cell, the PUCCH is selected to send the CSI. For example, the UE receives the PUSCH resource 1 allocated by the base station 1 of the primary cell and the base station 2 of the secondary cell.

PUSCH resources 2. The UE selects the PUSCH resource 1 allocated by the base station 1 of the primary cell in the two PUSCH resources, and carries the CSI through the PUSCH1.

In the process of implementing the present invention, the inventors have found that the prior art has at least the following problems: For two base stations, since the time of message transmission between base stations is 10-20 ms, the two base stations respectively transmit PUSCHs allocated for the same UE. Within 10-20 ms of the resource, it is not known that other base stations other than themselves also allocate PUSCH resources to the same UE at the same time. The information transmission time between the UE and the base station is 4 ms. Since the information transmission time between the base stations is greater than the information transmission time between the UE and the base station, both base stations consider that the received message carries CSI information, and the two base stations Metropolis The received message is decoded in accordance with the mode in which the CSI is carried. At this time, the base station 1 decodes the received message according to the mode carrying the CSI, and can correctly decode the CSI. The base station 2 also decodes the received message according to the mode carrying the CSI, but the message does not carry the CSI. Therefore, the base station 2 cannot correctly decode, causing the base station 2 to request the UE to retransmit data, which reduces the peak rate of the UE. Summary of the invention

In order to solve the problem of the prior art, an embodiment of the present invention provides a method for transmitting channel state information, a user equipment, a base station, and a system. The technical solution is as follows:

The first aspect provides a method for transmitting channel state information, where the method includes: determining a base station where a component carrier corresponding to a periodic channel state information CSI is located, and determining whether a component carrier of the base station has the CSI The physical uplink shared channel PUSCH resource; if at least one component carrier of the base station has a PUSCH resource that can carry the CSI, select one PUSCH resource, and carry the CSI in the selected PUSCH resource for transmission.

With reference to the first aspect, in a first possible implementation manner of the first aspect, after determining whether the component carrier of the base station has a physical uplink shared channel PUSCH resource that can carry the CSI, the method further includes:

If the component carrier of the base station does not have a PUSCH resource that can carry the CSI, the CSI is sent by using a physical uplink control channel (PUCCH) resource, where the PUCCH is a PUCCH resource corresponding to a component carrier of the base station or another base station. The PUCCH resource corresponding to the component carrier.

With reference to the first aspect, in a second possible implementation manner of the first aspect, if the at least one component carrier of the base station has a PUSCH resource that can carry the CSI, selecting a PUSCH resource, including:

Determining, by the base station, a component carrier index number corresponding to each of the CSI-capable PUSCH resources, and using the CSCH-capable PUSCH resource corresponding to the minimum component carrier index number as the selected PUSCH resource.

With reference to the first aspect, the first possible implementation manner of the first aspect, and the second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, each component carrier of the base station Are configured in different timing advance groups;

Determining whether a component carrier of the base station has a physical uplink shared signal that can carry the CSI Channel PUSCH resources, including:

Determining, in the base station, a timing advance group in which the component carrier corresponding to the CSI is located, and determining whether a component carrier of the timing advance group has a PUSCH resource that can carry the CSI.

With reference to the third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, after determining, by the component carrier of the timing advance group, whether the PUSCH resource that can carry the CSI is Also includes:

If the timing advance group does not have a PUSCH resource that can carry the CSI, the CSI is sent by using a PUCCH resource, where the PUCCH is a PUCCH resource corresponding to a component carrier of the base station or a PUCCH corresponding to a component carrier of another base station. Resources.

With reference to the third possible implementation manner of the foregoing aspect, in a fifth possible implementation manner of the first aspect, after determining, by the component carrier of the timing advance group, whether the PUSCH resource that can carry the CSI is Also includes:

If there is a PUSCH resource that can carry the CSI in the timing advance group, one PUSCH resource is selected from the timing advance group, and the CSI is carried in the selected PUSCH resource for transmission.

With reference to the fifth possible implementation manner of the first aspect, in a sixth possible implementation manner of the foregoing aspect, if the timing advance group has a PUSCH resource that can carry the CSI, select one of the PUSCH resources PUSCH resources, including:

The component carrier index number corresponding to each CSI-capable PUSCH resource in the timing advance group is determined, and the CSCH-capable PUSCH resource corresponding to the minimum component carrier index number is used as the selected PUSCH resource. A second aspect provides a user equipment, where the user equipment includes:

a first determining module, configured to determine a base station where a component carrier corresponding to the periodic channel state information CSI is located;

a second determining module, configured to determine whether a component carrier of the base station determined by the first determining module has a physical uplink shared channel PUSCH resource that can carry the CSI;

a selecting module, configured to: when the second determining module determines that at least one component carrier of the base station has a PUSCH resource that can carry the CSI, select a PUSCH resource from the PUSCH resource;

And a sending module, configured to send the CSI in a PUSCH resource selected by the selecting module.

With reference to the second aspect, in a first possible implementation manner of the second aspect, the sending module, And when the second determining module determines that the component carrier of the base station does not have the PUSCH resource that can carry the CSI, sending the CSI by using a physical uplink control channel PUCCH resource, where the PUCCH is the base station The PUCCH resource corresponding to the component carrier or the PUCCH resource corresponding to the component carrier of the other base station.

With reference to the second aspect, in a second possible implementation manner of the second aspect, the selecting module is further configured to: determine, by the second determining module, each PUSCH resource that can carry the CSI in the base station The component carrier index number is used as the selected PUSCH resource by the CSI-capable PUSCH resource corresponding to the minimum component carrier index number.

With reference to the second aspect, the first possible implementation manner of the second aspect, and the second possible implementation manner of the second aspect, in a third possible implementation manner of the second aspect, each component carrier of the base station Are configured in different timing advance groups;

The second determining module is further configured to determine, in the base station, a timing advance group in which the component carrier corresponding to the CSI is located, and determine whether a component carrier of the timing advance group has a PUSCH resource that can carry the CSI.

With the third possible implementation of the second aspect, in a fourth possible implementation manner of the second aspect, the sending module is further configured to: when the second determining module determines that the timing advance group is not When the PUSCH resource of the CSI is carried, the CSI is transmitted by using a PUCCH resource, where the PUCCH is a PUCCH resource corresponding to a component carrier of the base station or a PUCCH resource corresponding to a component carrier of another base station.

With the third possible implementation of the second aspect, in a fifth possible implementation manner of the second aspect, the sending module is further configured to: when the second determining module determines that the timing advance group has When the PUSCH resource of the CSI can be carried, one PUSCH resource is selected from the CSI, and the CSI is carried in the selected PUSCH resource for transmission.

With reference to the fifth possible implementation manner of the second aspect, in a sixth possible implementation manner of the second aspect, the selecting module is further configured to determine that each of the timing advance group has a CSI

The component carrier index number corresponding to the PUSCH resource, and the PUSCH resource carrying the CSI corresponding to the minimum component carrier index number is used as the selected PUSCH resource.

The third aspect provides a method for acquiring channel state information, where the method includes: determining whether a physical uplink shared channel PUSCH resource allocated to a user equipment can carry periodic channel state information CSI;

If the allocated at least one PUSCH resource can carry the CSI, it is determined to carry the One PUSCH resource of the CSI, and acquiring the CSI carried from the determined PUSCH resource. With reference to the third aspect, in a first possible implementation manner of the third aspect, the determining, by using the PUSCH resource that carries the CSI, includes:

Determining a component carrier index number corresponding to each of the CSI-capable PUSCH resources, and using the CSI-capable PUSCH resource corresponding to the minimum component carrier index number as the determined carrying CSI

PUSCH resources.

With the third aspect or the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect, the component carriers are configured in different timing advance groups;

Determining whether the physical uplink shared channel PUSCH resource allocated to the user equipment can carry the periodic channel state information CSI includes:

It is determined whether the PUSCH resource of the component carrier of the timing advance group allocated to the user equipment can carry the CSI.

With reference to the second possible implementation manner of the third aspect, in a third possible implementation manner of the third aspect, the determining, by the component carrier of the timing advance group allocated to the user equipment, the PUSCH resource may carry the After CSI, it also includes:

If at least one PUSCH resource in the timing advance group can carry the CSI, determine a PUSCH resource carrying the CSI from the UE, and obtain the CSI carried from the determined PUSCH resource.

With reference to the third possible implementation manner of the third aspect, in a fourth possible implementation manner of the third aspect, the determining, by using the PUSCH resource that carries the CSI, includes:

The component carrier index number corresponding to each CSI-capable PUSCH resource in the timing advance group is determined, and the CSCH-capable PUSCH resource corresponding to the minimum component carrier index number is used as the determined PUSCH resource.

In a fourth aspect, a base station is provided, where the base station includes:

a determining module, configured to determine whether a physical uplink shared channel PUSCH resource allocated to the user equipment can carry periodic channel state information CSI;

a selecting module, configured to: when the determining module determines that the allocated at least one PUSCH resource can carry the CSI, determine, from the PUSCH resource that carries the CSI;

An obtaining module, configured to obtain, by using the PUSCH resource determined by the selecting module

CSI.

With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, And determining, by using the component carrier index number corresponding to the PUSCH resource that can carry the CSI, and using the CSCH-capable PUSCH resource that is the minimum component carrier index number as the determined PUSCH resource that carries the CSI.

With reference to the fourth aspect, or the first possible implementation manner of the fourth aspect, in the second possible implementation manner of the fourth aspect, the component carriers are configured in different timing advance groups;

The determining module is configured to determine whether a PUSCH resource that is included in a component carrier of a timing advance group allocated to the user equipment can carry the CSI.

With reference to the second possible implementation manner of the fourth aspect, in a third possible implementation manner of the fourth aspect, the selecting module is further configured to: when the at least one PUSCH resource in the timing advance group is portable Determining, from the CSI, a PUSCH resource carrying the CSI;

The acquiring module is configured to obtain the carried CSI from the PUSCH resources determined by the selecting module.

With reference to the third possible implementation manner of the fourth aspect, in a fourth possible implementation manner of the fourth aspect, the selecting module is configured to determine, according to the PUSCH resource that can carry CSI in the timing advance group The component carrier index number is used as the determined PUSCH resource by the CSI-capable PUSCH resource corresponding to the minimum component carrier index number.

A fifth aspect provides a system for transmitting channel state information, where the system includes: a user equipment and a base station;

The user equipment is the user equipment according to the second aspect, and the base station is configured as the base station according to the fourth aspect.

The beneficial effects of the technical solutions provided by the embodiments of the present invention are:

The PUSCH resource is selected to transmit periodic CSI in the case that the CSI-capable PUSCH resource is located in the base station where the component carrier corresponding to the periodic CSI is located, and the PUCCH resource is selected to transmit the periodic CSI, thereby improving the accuracy of determining the scheduling decision by the base station. , increase the peak rate of the UE. DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Other drawings may also be obtained from those of ordinary skill in the art in light of the inventive work. 1 is a flowchart of a method for transmitting channel state information according to an embodiment of the present invention; FIG. 2 is a flowchart of a method for acquiring channel state information according to another embodiment of the present invention; FIG. 4 is a flowchart of a method for transmitting a third channel state information according to another embodiment of the present invention; FIG. 5 is a flowchart of another method for transmitting channel state information according to another embodiment of the present invention; A schematic structural diagram of a user equipment;

6 is a schematic structural diagram of a base station according to another embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a system for transmitting channel state information according to another embodiment of the present invention. detailed description

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

This embodiment provides a method for transmitting channel state information. Referring to FIG. 1, the flow of the method provided in this embodiment is as follows:

101: Determine a base station where a component carrier corresponding to a periodic CSI (Channel State Information) is located, and determine whether a component carrier of the base station has a PUSCH (Physical Uplink Shared Channel) resource that can carry CSI; The channel condition, the component carrier corresponding to the periodic CSI is a component carrier corresponding to the channel condition described by the periodic CSI.

102: If at least one component carrier of the base station has a PUSCH resource that can carry CSI, select one PUSCH resource from the CSI, and carry the CSI in the selected PUSCH resource for transmission.

The method provided by the embodiment of the present invention, when a PUSCH resource that can carry CSI is included in a base station where a component carrier corresponding to a periodic CSI is located, selects a PUSCH resource to send periodic CSI, and otherwise selects a PUCCH resource to send periodic CSI, thereby Improve the accuracy of the base station to determine the scheduling decision and improve the peak rate of the UE. Another embodiment of the present invention further provides a method for acquiring channel state information. Referring to FIG. 2, the process of the method provided in this embodiment is specifically as follows:

201: Determine whether a physical uplink shared channel PUSCH resource allocated to the user equipment can carry periodic channel state information CSI; 202: If the allocated at least one PUSCH resource can carry the CSI, determine one PUSCH resource that carries the CSI, and obtain the carried CSI from the determined PUSCH resource.

The method provided by the embodiment of the present invention, when the base station has the PUSCH resource that can carry the CSI, selects one PUSCH resource to obtain the periodic CSI, and then selects the PUCCH resource to obtain the periodic CSI, thereby improving the accuracy of determining the scheduling decision by the base station, and improving The peak rate of the UE.

In order to explain more clearly the method for transmitting channel state information provided by the foregoing embodiment, a method for transmitting channel state information is described in detail in the following embodiments in conjunction with the following embodiments. For details, refer to the following embodiments: Another embodiment of the present invention provides a method for transmitting channel state information. Referring to FIG. 3, the method according to the embodiment includes:

301: The user equipment determines a base station where the component carrier corresponding to the periodic CSI is located;

For this step, the method for determining the base station where the component carrier corresponding to the periodic CSI is located is not limited in this embodiment, including but not limited to: searching for a component carrier corresponding to the periodic CSI, and determining the base station where the member carrier is located.

Taking the periodic CSI as CSI1 as an example, the component carrier corresponding to CSI1 is used as the component carrier 5, and the base station where the member carrier 5 is located is the base station 1, and the base station 1 is used as the base station where the component carrier corresponding to the determined periodic CSI is located. The member carrier name may also be a component carrier 7, or a carrier 7, or other name. In this embodiment, the member carrier name is not specifically defined; the base station name may also be the base station 2, or the base station 3, or other name, this embodiment. The base station name is not specifically limited.

The user equipment determines, according to the base station where the component carrier corresponding to the periodic CSI is located, whether the component carrier of the base station has a CSCH-capable PUSCH resource. If at least one component carrier of the base station has a CSCH-capable PUSCH resource, perform the following steps. 303. Otherwise, performing step 304. In a specific implementation, the method for determining whether the component carrier of the base station has the CSI-capable PUSCH resource includes, but is not limited to, the following two steps. The embodiment does not determine whether the component carrier of the base station is portable. The specific method of the PUSCH resource of the CSI is limited.

Step 1: Determine whether the component carrier of the base station has a PUSCH resource, if there is a PUSCH resource, perform step 2, otherwise perform step 304;

For the first step, the method for determining whether the component carrier of the base station has the PUSCH resource is specifically limited, including but not limited to determining whether the component carrier of the base station has the PUSCH resource according to whether the base station receives the PUSCH resource allocated thereto. In addition, this embodiment does not The manner in which the base station allocates the PUSCH resources is specifically limited. For example, the base station may dynamically allocate the PUSCH resources, or may semi-statically allocate the PUSCH resources.

For example, in the step 301, the UE determines that the base station in which the component carrier corresponding to the periodic CSI1 is located is the base station 1 as an example. If the UE simultaneously receives the PUSCH resources that the base station 1 dynamically allocates for the three component carriers of the UE, the component carrier 1 has PUSCH resource 1, PUSCH resource 2 of component carrier 2, and PUSCH resource 3 of component carrier 3. The UE determines that the component carriers of the base station have PUSCH resources, which are PUSCH resource 1, PUSCH resource 2, and PUSCH resource 3. These PUSCH resources may be dynamically allocated by the base station or may be semi-statically allocated.

Step 2: Determine whether the PUSCH resource that the component carrier of the base station has has a CSCH-capable PUSCH resource.

For the second step, the method for determining whether the component carrier of the base station has the CSI-capable PUSCH resource is specifically limited, including but not limited to determining whether the CSI is sufficient to carry the CSI according to the size of the PUSCH resource allocated by the receiving base station. It is determined whether the component carrier of the base station has a PUSCH resource that can carry CSI.

For example, in the first step, the UE determines that the PUSCH resource of the component carrier of the base station is the PUSCH resource 1, the PUSCH resource 2, and the PUSCH resource 3. If the size of the PUSCH resource 1 is 10 bytes (bytes), the size of the PUSCH resource 2 is 150 bytes. The size of the PUSCH resource 3 is 200 Bytes, and the PUSCH resource of more than 20 Bytes can carry the CSI1. Therefore, the UE determines that the base station 1 has two PUSCH resources that can carry CSI1, which are PUSCH resource 2 and PUSCH resource 3.

Of course, the size of the resource required for carrying the CSI or the size of the PUSCH resource may be 64 bits, or 3M, or other sizes. This embodiment does not specifically limit the size of the resource required for carrying the CSI or the size of the PUSCH resource.

303: The user equipment selects one PUSCH resource from the CSI-capable PUSCH resources that the at least one component carrier of the base station has, and carries the CSI in the selected PUSCH resource for sending. For this step, if there is a PUSCH resource that can carry CSI. The component carriers are multiple, and the UE determines the component carrier index number corresponding to each CSI-capable PUSCH resource in the base station, and uses the CSI-capable PUSCH resource corresponding to the minimum component carrier index number as the selected PUSCH resource, and then carries the CSI in need. In the transmitted data, CSI is transmitted through the selected PUSCH resource.

This embodiment does not specifically limit the data to be sent, including but not limited to the data that the UE needs to send when the base station configures the PUSCH resource. This embodiment does not specifically limit the carrying manner of carrying the CSI to the data to be sent, including but not limited to the CSI and the data to be sent. Hybrid coding, forming a message, and transmitting the message to the base station through the PUSCH resource.

The UE determines that the base station 1 has two CSI-capable PUSCH resources, which are the PUSCH resource 2 and the PUSCH resource 3, respectively. If the component carrier index number corresponding to the PUSCH resource 2 is 2, the PUSCH resource 3 corresponds to The component carrier index number is 3, and the PUSCH resource 2 corresponding to the minimum component carrier index number 2 is selected as the selected PUSCH resource. The UE mixes and codes the data sent by the UE with the CSI1 and the PUSCH resource 2 to form the message 1. Message 1 is sent to base station 1 through PUSCH2.

Of course, the index number corresponding to the PUSCH resource may be 100001, or 3, or other index numbers. In this embodiment, the index number corresponding to the PUSCH resource is not specifically limited.

304: The user equipment sends the CSI through a PUCCH (Physical Uplink Control Channel) resource.

In the specific implementation process, there is no PUSCH resource that can carry CSI for the component carrier of the base station, including but not limited to any one of the following two situations:

The first case: the component carrier of the base station has at least one PUSCH resource but the at least one PUSCH resource cannot carry the CSI;

Specifically, the UE determines that the base station is the base station 1 in step 301. If the UE receives the PUSCH resource dynamically allocated by the base station 1 for the UE, the PUSCH resource 1 of the component carrier 1 and the PUSCH of the component carrier 2 are respectively. Resource 2. The size of the PUSCH resource 1 is lOBytes, and the size of the PUSCH resource 2 is 15 Bytes, and the PUSCH resource of more than 20 Bytes can carry the CSI1. Therefore, the UE determines that the component carrier of the base station 1 does not have the PUSCH resource that can carry the CSI1.

The second case: The component carrier of the base station has no PUSCH resources.

Specifically, the UE determines that the base station is the base station 1 in step 301. If the UE does not receive the PUSCH resource allocated by the base station 1 for the UE, the UE determines that the component carrier of the base station 1 does not have the PUSCH resource.

For any of the above two cases, the UE sends the CSI through the PUCCH resource. The PUCCH resource is a PUCCH resource that requires the UE to periodically transmit the CSI, and the PUCCH resource may be a PUCCH resource corresponding to a component carrier in a base station where the component carrier corresponding to the CSI is located, or a PUCCH resource corresponding to a component carrier of another base station.

305: The base station determines whether to allocate a PUSCH resource to the UE, if the base station allocates a PUSCH resource to the UE, step 306 is performed, otherwise step 308 is performed;

This embodiment does not specifically limit the manner in which the base station allocates PUSCH resources for the UE, for example, The base station may dynamically allocate PUSCH resources or semi-statically allocate PUSCH resources.

306: The base station determines whether the PUSCH resource allocated to the UE can carry the CSI. If the at least one PUSCH resource allocated by the base station can carry the CSI, go to step 307. Otherwise, go to step 308. For this step, the embodiment does not determine the allocation to the base station. The method for determining whether the PUSCH resource of the UE can carry the CSI is specifically limited, including but not limited to determining whether the CSI is sufficient to carry the CSI according to the size of the PUSCH resource allocated by the base station to the UE, and determining whether the PUSCH resource allocated to the UE can carry the CSI.

The PUSCH resource dynamically allocated by the base station 1 for the UE is the PUSCH resource 1, the PUSCH resource 2, and the PUSCH resource 3. For example, if the size of the PUSCH resource 1 is 10 bytes (bytes), the size of the PUSCH resource 2 is 150 bytes, and the PUSCH resource 3 is A size of 200 Bytes, and a PUSCH resource of more than 20 Bytes can carry CSI1. Therefore, two of the PUSCH resources allocated by the base station 1 to the UE can carry CSI1, which are PUSCH resource 2 and PUSCH resource 3.

307: The base station determines a PUSCH resource that carries the CSI from the allocated at least one CSI-capable PUSCH resource, and receives the message sent by the UE by using the determined PUSCH resource, and obtains the carried CSI from the received message, and the process ends.

For the step, if the base station allocates a CSI-capable PUSCH resource, the base station determines a component carrier index number corresponding to each CSI-capable PUSCH resource, and determines a carrier CSI-capable PUSCH resource corresponding to the minimum component carrier index number. After the PUSCH resource carrying the CSI, the UE sends the message sent by the UE through the determined PUSCH resource, and obtains the carried CSI from the received message.

This embodiment does not specifically limit the manner in which the received CSI is obtained from the received message, including but not limited to decoding the received message according to the CSI carrying mode to obtain the carried CSI.

In step 306, the base station 1 determines that there are two CSIs that can be carried in the PUSCH resource allocated to the UE, which are the PUSCH resource 2 and the PUSCH resource 3, respectively. If the component carrier index number corresponding to the PUSCH resource 2 is 2, the PUSCH resource 3 corresponds to The member carrier index number is 3, and the PUSCH resource 2 corresponding to the minimum component carrier index number 2 is selected as the determined PUSCH resource carrying the CSI1. The base station 1 receives the message 1 sent by the UE through the PUSCH resource 2, and decodes the CSI1 carried by the message 1 according to the mode carrying the CSI.

308: The base station acquires the CSI through the PUCCH resource.

In a specific implementation process, when the base station does not allocate a PUSCH resource that can carry CSI, This includes but is not limited to any of the following two situations:

The first case: the base station allocates at least one PUSCH resource to the UE, but the at least one PUSCH resource cannot carry the CSI;

Specifically, if the base station 1 dynamically allocates PUSCH resources for the UE, it is PUSCH resource 1 and PUSCH resource 2. The size of the PUSCH resource 1 is lOBytes, and the size of the PUSCH resource 2 is 15 Bytes, and the PUSCH resource larger than 20 Bytes can carry the CSI1. Therefore, the base station 1 determines that the base station 1 does not allocate the PUSCH resource that can carry the CSI.

Case 2: The base station does not allocate PUSCH resources.

For any of the above two cases, the base station receives the CSI sent by the UE through the PUCCH resource.

The method provided in this embodiment is to select a PUSCH resource to send periodic CSI, and then select a PUCCH resource to send periodic CSI, so as to improve the PUSCH resource that can carry CSI in the base station where the component carrier corresponding to the periodic CSI is located. The base station determines the accuracy of the scheduling decision and increases the peak rate of the UE. Another embodiment of the present invention provides a method for transmitting channel state information. Referring to FIG. 4, the method process provided by this embodiment includes:

401: The user equipment determines a base station where the component carrier corresponding to the periodic CSI is located, and determines, in the base station, a TAG (Timing Advance Group) where the component carrier corresponding to the CSI is located. For this step, each component carrier of the base station is Configured in different TAGs. The method for determining the TAG where the component carrier corresponding to the periodic CSI is located is not limited in this embodiment, including but not limited to determining the TAG where the component carrier corresponding to the CSI is located.

Taking the periodic CSI as CSI1 as an example, the component carrier corresponding to the CSI1 is the member carrier 5, the base station where the component carrier 5 is located is the base station 1, and the TAG where the component carrier 5 is located is TAG2, and the TAG2 is determined as the determined CSI. The TAG of the member carrier. Of course, the TAG name can also be TAG3, or TAG7, or other names. In this embodiment, the TAG name is not specifically limited.

The user equipment determines, according to the TAG of the component carrier corresponding to the periodic CSI, whether the component carrier of the TAG has a PUSCH resource that can carry the CSI. If at least one component carrier in the TAG has a PUSCH resource that can carry the CSI, perform the following steps. 403. Otherwise, step 404 is performed. In the specific implementation process, determining whether the component carrier in the TAG has a PUSCH that can carry CSI The method of the source includes, but is not limited to, the following two steps. This embodiment does not limit a specific method for determining whether a component carrier in a TAG has a PUSCH resource that can carry CSI.

Step 1: Determine whether the component carrier in the TAG has a PUSCH resource, if there is a PUSCH resource, perform step 2, otherwise perform step 404;

For the first step, the embodiment does not specifically determine whether the component carrier in the TAG has a PUSCH resource, including but not limited to determining whether the component carrier in the TAG has the PUSCH resource of the component carrier in the TAG allocated by the base station. PUSCH resources. In addition, this embodiment does not specifically limit the manner in which the base station allocates the PUSCH resources of the component carriers in the TAG to the UE. For example, the base station may dynamically allocate the PUSCH resources of the component carriers in the TAG to the UE, or may semi-statically allocate the PUSCH resources of the component carriers in the TAG.

In the step 401, the UE determines that the base station where the component carrier corresponding to the periodic CSI1 is located is the base station 1 and the TAG is the TAG2. If the UE receives the PUSCH resources of the three component carriers in the TAG2 dynamically allocated by the base station 1 for the UE, The PUSCH resource 1 of the component carrier 1 dynamically allocated for the UE, the PUSCH resource 2 of the component carrier 2, and the PUSCH resource 3 of the component carrier 3, respectively. The UE determines that the component carriers in TAG2 have PUSCH resources, which are PUSCH resource 1, PUSCH resource 2, and PUSCH resource 3.

Step 2: Determine whether the PUSCH resource of the component carrier in the TAG has a PUSCH resource that can carry CSI.

For the second step, the method for determining whether the component carrier in the TAG has the CSI-capable PUSCH resource is specifically limited, including but not limited to the size of the PUSCH resource that the component carrier in the TAG allocated by the base station is the UE. Whether it is enough to carry CSI, determine whether the component carrier in the TAG has a PUSCH resource that can carry CSI.

For example, in the first step, the UE determines that the PUSCH resources of the component carriers in the TAG2 are the PUSCH resource 1, the PUSCH resource 2, and the PUSCH resource 3. If the size of the PUSCH resource 1 is 10 bytes (bytes), the size of the PUSCH resource 2 is 150 bytes. The size of the PUSCH resource 3 is 200 Bytes, and only the PUSCH resource of more than 20 Bytes can carry the CSI1. Therefore, the UE determines that there are two PUSCH resources in the TAG2 that can carry the CSI1, which are the PUSCH resource 2 and the PUSCH resource 3.

403: The user equipment selects one PUSCH resource from a PUSCH resource that has a CSI carrying at least one component carrier in the TAG, and carries the CSI in the selected PUSCH resource, and the process ends;

For this step, if there are more component carriers in the TAG that have the CSCH-capable PUSCH resources The UE determines the component carrier index number corresponding to each CSI-capable PUSCH resource in the TAG, and uses the CSI-capable PUSCH resource corresponding to the minimum component carrier index number as the selected PUSCH resource, and then carries the CSI in the data to be sent. Send CSI through the selected PUSCH. This embodiment does not specifically limit the data to be sent, including but not limited to the data that the UE needs to send when the base station configures the PUSCH resource. The present embodiment does not specifically limit the carrying manner of the CSI to be carried in the data to be transmitted, including but not limited to, the CSI and the data to be transmitted are mixed and encoded to form a message, and the message is sent to the base station through the PUSCH resource.

The UE determines that there are two CSI-capable PUSCH resources in the TAG2, which are the PUSCH resource 2 and the PUSCH resource 3, respectively. If the component carrier index number corresponding to the PUSCH resource 2 is 2, the PUSCH resource 3 corresponds to The component carrier index number is 3, and the PUSCH resource 2 corresponding to the minimum component carrier index number 2 is selected as the selected PUSCH resource. The UE mixes and codes the data sent by the UE with the CSI1 and the PUSCH resource 2 to form the message 1. Message 1 is sent to base station 1 through the PUSCH2 resource.

404: The user equipment sends the CSI through the PUCCH resource.

In the specific implementation process, there is no PUSCH resource that can carry CSI for the component carrier in the TAG, including but not limited to any of the following two situations:

The first case: the component carrier in the TAG has at least one PUSCH resource, but the at least one PUSCH resource cannot carry the CSI;

Specifically, the UE determines that the base station is the base station 1 and the TAG is the TAG2 in the step 401. If the UE receives the PUSCH resources of the two component carriers in the TAG2 allocated by the base station, the PUSCH of the component carrier 1 is respectively Resource 1 and component carrier 2 have PUSCH resource 2. The size of the PUSCH resource 1 is lOBytes, and the size of the PUSCH resource 2 is 15 Bytes, and the PUSCH resource of more than 20 Bytes can carry the CSI1. Therefore, the UE determines that the component carrier in the TAG2 does not have the PUSCH resource that can carry the CSI1.

The second case: The component carrier in the TAG does not have a PUSCH resource.

Specifically, the UE determines that the base station is the base station 1 and the TAG is the TAG2 in the step 401. If the UE does not receive the PUSCH resource that the base station has for any component carrier in the TAG2 allocated by the base station, the UE determines that the component carrier in the TAG2 has no PUSCH resource. .

For any of the above two cases, the UE sends the CSI through the PUCCH resource. The PUCCH resource is a PUCCH resource that requires the UE to periodically transmit CSI, and the PUCCH resource may be a PUCCH resource corresponding to the component carrier in the TAG of the component carrier corresponding to the CSI or other A PUCCH resource corresponding to a component carrier of the base station.

In the method provided by the embodiment, when a PUSCH resource that can carry CSI is included in a base station where a component carrier corresponding to a periodic CSI is located, one PUSCH resource is selected to transmit periodic CSI, and then the PUCCH resource is selected to send periodic CSI. Improve the accuracy of the base station to determine the scheduling decision and improve the peak rate of the UE.

405: The base station determines whether the PUSCH resource corresponding to the component carrier of the TAG is allocated to the UE, and if the base station allocates the PUSCH resource corresponding to the component carrier of the TAG to the UE, step 406 is performed, otherwise step 408 is performed;

In this embodiment, the manner in which the base station allocates the PUSCH resource corresponding to the component carrier of the TAG to the UE is specifically limited. For example, the base station may dynamically allocate the PUSCH resource corresponding to the component carrier of the TAG, or may semi-statically allocate the PUSCH resource corresponding to the component carrier of the TAG. .

406: The base station determines whether the PUSCH resource of the component carrier of the TAG allocated to the UE can carry the CSI, if the base station allocates the PUSCH resource of the component carrier of the TAG of the UE, step 407 is performed, otherwise, step 408 is performed;

For this step, the method for determining whether the PUSCH resource of the TAG component of the TAG allocated to the UE can carry the CSI is specifically limited, including but not limited to the PUSCH of the component carrier of the TAG allocated to the UE according to the base station. The size of the resource determines whether it is sufficient to carry the CSI, and determines whether the PUSCH resource of the component carrier of the TAG allocated to the UE can carry the CSI.

The PUSCH resource of the TAG2 component carrier that is dynamically allocated by the base station 1 for the UE is the PUSCH resource 1, the PUSCH resource 2, and the PUSCH resource 3. For example, if the size of the PUSCH resource 1 is 10 bytes (bytes), the size of the PUSCH resource 2 is 150 Bytes, the size of the PUSCH resource 3 is 200 Bytes, and the PUSCH resource of more than 20 Bytes can carry the CSI1. Therefore, the component carrier of the TAG2 allocated by the base station 1 to the UE has two CSIs that can carry the CSI1, which are respectively the PUSCH resource 2 And PUSCH resources 3.

407: The base station determines one PUSCH resource that carries the CSI from the PUSCH resources that are included in the component carrier of the at least one CSI-capable TAG, and receives the message sent by the UE by using the determined PUSCH resource, and obtains the carried message from the received message. CSI, the process ends.

For this step, if the component carrier of the CSI-capable TAG that the base station allocates has multiple PUSCH resources, the base station determines the member carrier index number corresponding to the PUSCH resource of the component carrier of each CSI-capable TAG, and corresponds to the minimum member. The carrier index of the CSI-capable TAG of the carrier index number has a PUSCH resource as a member of the determined CSI carrying TAG. After the PUSCH resource that the wave has, the received message sent by the UE is received by the determined PUSCH resource of the component carrier of the TAG, and the carried CSI is obtained from the received message.

In the step 406, the base station 1 determines that the component carrier of the TAG2 allocated to the UE has two bearer CSI1s, which are the PUSCH resource 2 and the PUSCH resource 3, respectively, if the component carrier index number corresponding to the PUSCH resource 2 is 2, the component carrier index number corresponding to the PUSCH resource 3 is 3, and the PUSCH resource 2 corresponding to the minimum component carrier index number 2 is selected as the PUSCH resource of the component carrier of the TAG1 carrying the CSI1. The base station 1 receives the message 1 sent by the UE through the PUSCH resource 2, and decodes the CSI1 carried in the CSI mode.

408: The base station acquires the CSI through the PUCCH resource.

In the specific implementation, the case where the base station does not allocate the PUSCH resource of the component carrier of the TAG carrying the CSI includes, but is not limited to, any one of the following two situations:

The first case: the component carrier of the TAG allocated by the base station has at least one PUSCH resource, but the at least one PUSCH resource cannot carry the CSI;

Specifically, if the base station 1 dynamically allocates the component carriers of the TAG2 that the UE dynamically allocates, the PUSCH resources are PUSCH resource 1 and PUSCH resource 2. The size of the PUSCH resource 1 is lOBytes, and the size of the PUSCH resource 2 is 15 Bytes, and the PUSCH resource of more than 20 Bytes can carry the CSI1. Therefore, the base station 1 determines that the base station 1 does not allocate the PUSCH resource of the component carrier of the TAG2 that can carry the CSI.

Case 2: The base station does not allocate PUSCH resources.

The method provided in this embodiment is to select one PUSCH resource to send periodic CSI in the case that the PDCCH of the base station where the component carrier corresponding to the periodic CSI is located has the PUSCH resource, and select the PUCCH resource to send the periodic CSI. Therefore, the base station is improved in determining the accuracy of the scheduling decision, and the peak rate of the UE is improved. Another embodiment of the present invention provides a user equipment, where the user equipment is used to execute the foregoing embodiment. The method for transmitting channel state information provided by the third embodiment provides the function performed by the user equipment. Referring to FIG. 5, the user equipment includes:

a first determining module 501, configured to determine a base station where a component carrier corresponding to the periodic channel state information CSI is located;

The second determining module 502 is configured to determine whether the component carrier of the base station determined by the first determining module 501 has a physical uplink shared channel PUSCH resource that can carry CSI;

The selecting module 503 is configured to: when the second determining module 502 determines that at least one component carrier of the base station has a PUSCH resource that can carry CSI, select a PUSCH resource therefrom;

The sending module 504 is configured to send the CSI in the PUSCH resource selected by the selecting module 503.

Further, the sending module 504 is further configured to: when the second determining module 502 determines that the component carrier of the base station does not have a CSI-capable PUSCH resource, send the CSI by using a physical uplink control channel PUCCH resource, where the PUCCH is a component carrier of the base station. The PUCCH resource is a PUCCH resource corresponding to a component carrier of another base station.

Further, the selecting module 503 is further configured to determine a component carrier index number corresponding to each CSI-capable PUSCH resource in the base station determined by the second determining module 502, and select, as a selection, a CSCH-capable PUSCH resource corresponding to the minimum component carrier index number. PUSCH resources.

Optionally, each component carrier of the base station is configured in a different timing advance group. The second determining module 502 is further configured to determine, in the base station, a timing advance group in which the component carrier corresponding to the CSI is located, and determine a member of the timing advance group. Whether the carrier has a PUSCH resource that can carry CSI.

Further, the sending module 504 is further configured to: when the second determining module 502 determines that there is no CSI resource capable of carrying the CSI in the timing advance group, send the CSI by using the PUCCH resource, where the PUCCH is the PUCCH resource corresponding to the component carrier of the base station or other base station. The PUCCH resource corresponding to the component carrier.

Further, the sending module 504 is further configured to: when the second determining module 502 determines that the PUSCH resource that carries the CSI in the timing advance group, select one PUSCH resource, and carry the CSI in the selected PUSCH resource for transmission.

Further, the selecting module 503 is further configured to determine a component carrier index number corresponding to each CSI-capable PUSCH resource in the timing advance group, and use the CSI-capable PUSCH resource corresponding to the minimum component carrier index number as the selected PUSCH resource.

The user equipment provided in this embodiment passes the base of the component carrier corresponding to the periodic CSI. A PUSCH resource with a CSI in the station is selected to transmit a periodic CSI for one PUSCH resource, and a periodic CSI is selected for the PUCCH resource, so that the base station determines the accuracy of the scheduling decision and improves the peak rate of the UE. Another embodiment of the present invention provides a base station, where the base station is configured to perform the functions performed by the base station for implementing the method for transmitting channel state information provided by the foregoing Embodiments 1 to 3. Referring to Figure 6, the base station includes:

a determining module 601, configured to determine whether a physical uplink shared channel PUSCH resource allocated to the user equipment can carry periodic channel state information CSI;

The selecting module 602 is configured to determine, when the determining module determines that the allocated at least one PUSCH resource can carry the CSI, to determine a PUSCH resource carrying the CSI;

The obtaining module 603 is configured to obtain the carried CSI from the PUSCH resource determined by the selecting module. Further, the selecting module 602 is configured to determine a component carrier index number corresponding to each CSI-capable PUSCH resource, and use the CSI-capable PUSCH resource corresponding to the minimum component carrier index number as the determined CSCH-carrying PUSCH resource.

Further, each component carrier is configured in a different timing advance group;

The determining module 601 is configured to determine whether the PUSCH resource of the component carrier of the timing advance group allocated to the user equipment can carry the CSI.

Further, the selecting module 602 is further configured to: when the at least one PUSCH resource in the timing advance group can carry the CSI, determine a PUSCH resource that carries the CSI;

The obtaining module 603 is configured to obtain the carried CSI from the PUSCH resource determined by the selecting module. Further, the selecting module 602 is configured to determine a component carrier index number corresponding to each CSI-capable PUSCH resource in the timing advance group, and use the CSI-capable PUSCH resource corresponding to the minimum component carrier index number as the determined PUSCH resource.

The base station provided by the embodiment, when the base station has the PUSCH resource that can carry the CSI, selects one PUSCH resource to acquire periodic CSI, and then selects the PUCCH resource to acquire periodic CSI, thereby improving the accuracy of the base station determining the scheduling decision, and improving the UE. Peak rate. Another embodiment of the present invention provides a user equipment, where the user equipment includes:

a processor, configured to determine a base station where a component carrier corresponding to the periodic channel state information CSI is located, and determine whether a component carrier of the base station has a physical uplink shared channel PUSCH resource that can carry CSI; If at least one component carrier of the base station has a PUSCH resource that can carry CSI, select one PUSCH resource therefrom;

The transmitter is configured to send the CSI in a PUSCH resource selected by the processor.

Further, the transmitter is further configured to: when the processor determines that the component carrier of the base station does not have the CSI-capable PUSCH resource, send the CSI through the physical uplink control channel PUCCH resource, where the PUCCH is the PUCCH resource corresponding to the component carrier of the base station or Corresponding to the component carriers of other base stations

PUCCH resources.

Further, the processor is further configured to determine a component carrier index number corresponding to each CSI-capable PUSCH resource in the base station, and use the CSCH-capable PUSCH resource corresponding to the minimum component carrier index number as the selected PUSCH resource.

Optionally, each component carrier of the base station is configured in a different timing advance group, and the processor is further configured to determine, in the base station, a timing advance group in which the component carrier corresponding to the CSI is located, and determine whether the component carrier of the timing advance group has The PUSCH resource of the CSI can be carried.

Further, the transmitter is further configured to: when the processor determines that there is no CSI-capable PUSCH resource in the timing advance group, send the CSI by using the PUCCH resource, where the PUCCH is the PUCCH resource corresponding to the component carrier of the base station or the component carrier of the other base station. PUCCH resources.

Further, the transmitter is further configured to: when the processor determines that the PUSCH resource with the CSI in the timing advance group is selected, and selects one PUSCH resource, the CSI is carried in the selected PUSCH resource and sent.

Further, the processor is further configured to determine a component carrier index number corresponding to each CSI-capable PUSCH resource in the timing advance group, and use the CSI-capable PUSCH resource corresponding to the minimum component carrier index number as the selected PUSCH resource.

In summary, the user equipment provided in this embodiment selects one PUSCH resource to send periodic CSI if the base station where the component carrier corresponding to the periodic CSI is located has a PUSCH resource, and otherwise selects a PUCCH resource transmission periodicity. The CSI improves the accuracy of the base station to determine the scheduling decision and improves the peak rate of the UE. Another embodiment of the present invention provides a base station, where the base station includes:

a processor, configured to determine whether a physical uplink shared channel PUSCH resource allocated to the user equipment can carry periodic channel state information CSI; if the allocated at least one PUSCH resource can carry CSI, determine a PUSCH resource carrying CSI therefrom; Obtained in the determined PUSCH resources Take the CSI carried.

Further, the processor is further configured to determine a member carrier index number corresponding to each of the CSI-capable PUSCH resources, and use the CSI-capable PUSCH resource corresponding to the minimum component carrier index number as the determined CSCH-carrying PUSCH resource.

The processor is further configured to determine whether the PUSCH resource of the component carrier of the timing advance group allocated to the user equipment can carry the CSI.

Further, the processor is further configured to: when the at least one PUSCH resource in the timing advance group is CSI-capable, determine a PUSCH resource carrying the CSI, and obtain the carried CSI from the determined PUSCH resource.

Further, the processor is further configured to determine a component carrier index number corresponding to each CSI-capable PUSCH resource in the timing advance group, and use the CSI-capable PUSCH resource corresponding to the minimum component carrier index number as the determined PUSCH resource.

In summary, the device provided in this embodiment, when a base station has a PUSCH resource that can carry CSI, selects one PUSCH resource to acquire periodic CSI, and otherwise selects a PUCCH resource to acquire periodic CSI, thereby improving a base station to determine a scheduling decision. Accuracy, increasing the peak rate of the UE. Another embodiment of the present invention provides a system for transmitting channel state information, which is used to perform the method for transmitting channel state information provided by the foregoing embodiments. See Figure 7, the system includes:

User equipment 701 and base station 702;

The user equipment 701 is as described in the foregoing embodiment. For details, refer to the foregoing embodiment. The base station 702, as shown in the foregoing embodiment, is described in the foregoing embodiment. It should be noted that, in the process of channel state information, the user equipment and the base station provided by the foregoing embodiments are only illustrated by the division of the foregoing functional modules. In actual applications, the foregoing functions may be allocated by different functional modules according to requirements. Upon completion, the internal structure of the device is divided into different functional modules to perform all or part of the functions described above. In addition, the user equipment and the base station provided by the foregoing embodiment are in the same concept as the method for transmitting the channel state information. For the specific implementation process, refer to the method embodiment, and details are not described herein again. Those skilled in the art can understand that all or part of the steps of implementing the above embodiments can be The completion of the hardware may also be performed by a program to instruct related hardware. The program may be stored in a computer readable storage medium. The storage medium mentioned above may be a read only memory, a magnetic disk or an optical disk. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., which are within the spirit and scope of the present invention, should be included in the protection of the present invention. Within the scope.

Claims

claims

1. A method for sending channel state information, characterized in that the method includes:

Determine the base station where the component carrier corresponding to the periodic channel state information CSI is located, and determine whether the component carrier of the base station has a physical uplink shared channel PUSCH resource that can carry the CSI;

If at least one component carrier of the base station has a PUSCH resource that can carry the CSI, select one PUSCH resource therefrom, and carry the CSI in the selected PUSCH resource for transmission.

2. The method according to claim 1, characterized in that, after determining whether the component carrier of the base station has a physical uplink shared channel PUSCH resource that can carry the CSI, it further includes: if the component carrier of the base station If there is no PUSCH resource that can carry the CSI, the CSI is sent through the physical uplink control channel PUCCH resource. The PUCCH is the PUCCH resource corresponding to the component carrier of the base station or the PUCCH resource corresponding to the component carrier of other base stations. .

3. The method according to claim 1, wherein if at least one component carrier of the base station has a PUSCH resource that can carry the CSI, selecting a PUSCH resource therefrom includes:

Determine the component carrier index number corresponding to each PUSCH resource that can carry the CSI in the base station, and use the PUSCH resource that can carry the CSI corresponding to the smallest component carrier index number as the selected PUSCH resource.

4. The method according to any one of claims 1 to 3, characterized in that each component carrier of the base station is configured in different timing advance groups;

Determining whether the component carrier of the base station has a physical uplink shared channel PUSCH resource that can carry the CSI includes:

The base station determines the timing advance group in which the component carrier corresponding to the CSI is located, and determines whether the component carrier of the timing advance group has a PUSCH resource that can carry the CSI.

5. The method according to claim 4, characterized in that, after determining whether the component carriers of the timing advance group have PUSCH resources that can carry the CSI, it further includes:

If there is no PUSCH resource that can carry the CSI in the timing advance group, the PUCCH The CSI is sent using resources, and the PUCCH is a PUCCH resource corresponding to a component carrier of the base station or a PUCCH resource corresponding to a component carrier of another base station.

6. The method according to claim 4, characterized in that, after determining whether the component carriers of the timing advance group have PUSCH resources that can carry the CSI, it further includes:

If the timing advance group has PUSCH resources that can carry the CSI, select one PUSCH resource from it, and carry the CSI in the selected PUSCH resource for transmission.

7. The method according to claim 6, wherein if the timing advance group has a PUSCH resource that can carry the CSI, selecting a PUSCH resource from the timing advance group includes: determining a PUSCH resource in the timing advance group The component carrier index number corresponding to each CSI-carrying PUSCH resource is used, and the CSI-carrying PUSCH resource corresponding to the smallest component carrier index number is used as the selected PUSCH resource.

8. A user equipment, characterized in that the user equipment includes:

The first determination module is used to determine the base station where the component carrier corresponding to the periodic channel state information CSI is located;

A second determination module, configured to determine whether the component carrier of the base station determined by the first determination module has a physical uplink shared channel PUSCH resource that can carry the CSI;

A selection module configured to, when the second determination module determines that at least one component carrier of the base station has a PUSCH resource that can carry the CSI, select a PUSCH resource therefrom;

A sending module, configured to carry the CSI in the PUSCH resource selected by the selection module and send it.

9. The user equipment according to claim 8, wherein the sending module is further configured to: when the second determining module determines that the component carrier of the base station does not have a PUSCH resource that can carry the CSI, The CSI is sent by a physical uplink control channel PUCCH resource, where the PUCCH is a PUCCH resource corresponding to a component carrier of the base station or a PUCCH resource corresponding to a component carrier of another base station.

10. The user equipment according to claim 8, characterized in that, the selection module is further configured to determine PUSCH resources that can carry the CSI in each of the base stations determined by the second determination module. For the corresponding component carrier index number, the CSI-carrying PUSCH resource corresponding to the smallest component carrier index number is used as the selected PUSCH resource.

11. The user equipment according to any one of claims 8 to 10, characterized in that each component carrier of the base station is configured in different timing advance groups;

The second determination module is further configured to determine, in the base station, the timing advance group in which the component carrier corresponding to the CSI is located, and determine whether the component carrier of the timing advance group has a PUSCH resource that can carry the CSI.

12. The user equipment according to claim 11, wherein the sending module is further configured to: when the second determining module determines that there is no PUSCH resource that can carry the CSI in the timing advance group, The CSI is sent using PUCCH resources, which are PUCCH resources corresponding to component carriers of the base station or PUCCH resources corresponding to component carriers of other base stations.

13. The user equipment according to claim 11, wherein the sending module is further configured to: when the second determining module determines that the timing advance group has PUSCH resources that can carry the CSI, Select a PUSCH resource, and carry the CSI in the selected PUSCH resource for transmission.

14. The user equipment according to claim 13, characterized in that the selection module is further configured to determine the component carrier index number corresponding to each PUSCH resource that can carry CSI in the timing advance group, and set the corresponding minimum component carrier The CSI-carrying PUSCH resource with the index number is used as the selected PUSCH resource.

15. A method for obtaining channel state information, characterized in that the method includes: determining whether the physical uplink shared channel PUSCH resource allocated to the user equipment can carry periodic channel state information CSI;

If at least one allocated PUSCH resource can carry the CSI, determine a PUSCH resource carrying the CSI, and obtain the CSI carried from the determined PUSCH resource.

16. The method according to claim 15, characterized in that the determination of carrying the CSI A PUSCH resource, including:

Determine the component carrier index number corresponding to each PUSCH resource that can carry the CSI, and use the PUSCH resource that can carry the CSI corresponding to the smallest component carrier index number as the determined PUSCH resource that carries the CSI.

17. The method according to claim 15 or 16, characterized in that the respective component carriers are configured in different timing advance groups;

The method of determining whether the physical uplink shared channel PUSCH resources allocated to user equipment can carry periodic channel state information CSI includes:

Determine whether the PUSCH resources of the component carriers of the timing advance group allocated to the user equipment can carry the CSI.

18. The method according to claim 17, characterized in that, after determining whether the PUSCH resources of the component carriers of the timing advance group allocated to the user equipment can carry the CSI, further comprising: if the timing advance group At least one PUSCH resource in the resource can carry the CSI, then a PUSCH resource carrying the CSI is determined, and the CSI carried is obtained from the determined PUSCH resource.

19. The method according to claim 18, wherein the determining a PUSCH resource carrying the CSI includes:

Determine the component carrier index number corresponding to each CSI-carrying PUSCH resource in the timing advance group, and use the CSI-carrying PUSCH resource corresponding to the smallest component carrier index number as the determined PUSCH resource.

20. A base station, characterized in that, the base station includes:

Determination module, used to determine whether the physical uplink shared channel PUSCH resource allocated to the user equipment can carry periodic channel state information CSI;

A selection module configured to determine a PUSCH resource that carries the CSI when the determination module determines that at least one allocated PUSCH resource can carry the CSI;

An acquisition module, configured to acquire the carried CSI from the PUSCH resources determined by the selection module.

21. The base station according to claim 20, characterized in that the selection module is used to determine the component carrier index number corresponding to each PUSCH resource that can carry the CSI, and select the portable CSI corresponding to the smallest component carrier index number. The PUSCH resource is used as the determined PUSCH resource carrying the CSI.

22. The base station according to claim 20 or 21, characterized in that the respective component carriers are configured in different timing advance groups;

The determination module is used to determine whether the PUSCH resources of the component carriers of the timing advance group allocated to the user equipment can carry the CSI.

23. The base station according to claim 22, wherein the selection module is further configured to determine one of the PUSCH resources carrying the CSI when at least one PUSCH resource in the timing advance group can carry the CSI. PUSCH resources;

The acquisition module is configured to acquire the carried PUSCH resource from the PUSCH resource determined by the selection module.

CSI.

24. The base station according to claim 23, characterized in that the selection module is used to determine the component carrier index number corresponding to each PUSCH resource that can carry CSI in the timing advance group, and the corresponding minimum component carrier index number The PUSCH resources that can carry CSI are used as determined PUSCH resources.

25. A system for sending channel state information, characterized in that the system includes: user equipment and a base station;

Wherein, the user equipment is the user equipment described in any one of claims 8 to 14; and the base station is the base station described in any one of claims 20 to 24.