WO2015027522A1 - Uplink collaborative transmitting method and apparatus - Google Patents

Abstract

Embodiments of the present invention disclose an uplink collaborative transmitting method and apparatus. Embodiments of the present invention relate to the field of communications, are capable of suppressing interference among user equipment during uplink transmission and improve communication performance. The specific scheme is: a collaborative management device obtains User Identity (IDs) and resource scheduling information of user equipment in a collaborative cell set via at least one base station; the user ID of at least one first user equipment in the collaborative cell set is determined on basis of the resource scheduling information, and the first user equipment is the user equipment which occupies the same time-frequency resources as other user equipment in the cooperative cell set; and on basis of the user ID of the at least one first user equipment, a Pre-coding Matrix Indicator (PMI) is re-selected in a preset codebook set for the first user equipment, and the PMI is used for indicating an index of the codebook set to allow the first user equipment to pre-code data to be transmitted on basis of a codebook indicated by the PMI, thereby enabling the first user equipment to transmit the encoded data.

Description

 Uplink cooperative transmission method and device

Technical field

 The present invention relates to the field of communications, and in particular, to an uplink cooperative transmission method and device. Background technique

 With the development of wireless communication technology, in order to improve the communication performance of cell edge user equipment, the industry is based on the uplink/downlink Multiple Input Multiple Output (MIMO) precoding technology (which can effectively improve the spectrum efficiency of wireless communication systems). A Coordinated Multiple Points (CoMP) technology is proposed.

 Existing CoMP technologies include uplink CoMP reception technology and downlink CoMP transmission technology. Specifically, in the uplink CoMP receiving technology, multiple base stations can cooperatively receive the same user data, and obtain the array gain of the receiving side by the joint processing manner, suppress the interference of the cell edge user equipment, and improve the communication of the cell edge user equipment. For the purpose of performance, in the downlink CoMP transmission technology, multiple base stations can jointly transmit the same user data, and acquire the array gain of the transmitting side through joint processing to improve the receiving signal-to-noise ratio of the user equipment, thereby improving the cell edge user. The purpose of the communication performance of the device.

 However, there is a problem that the corresponding CoMP transmission technology is not included in the existing CoMP technology. Therefore, there is an urgent need for a solution that can achieve uplink CoMP transmission. Summary of the invention

 The embodiments of the present invention provide an uplink cooperative transmission method and device, which can suppress interference between user equipments during uplink transmission and improve communication performance.

 A first aspect of the embodiments of the present invention provides an uplink coordinated transmission method, where a coordinated cell set includes at least one user equipment, and the method includes:

The cooperation management device acquires the user in the coordinated cell set by using at least one base station a user identity ID and resource scheduling information of the device, where the resource scheduling information includes a time-frequency resource allocated by the base station to the user equipment;

 Determining, by the cooperation management device, the user ID of the at least one first user equipment in the coordinated cell set according to the resource scheduling information, where the first user equipment collects the same time-frequency resource from the other user equipments User equipment

 The cooperative management device reselects a precoding matrix indication PMI for the first user equipment in the preset codebook set according to the user ID of the at least one first user equipment, where the PMI is used to indicate the code The index of the set is such that the first user equipment pre-codes the data to be transmitted according to the codebook indicated by the PMI, so that the first user equipment transmits the encoded data.

 With reference to the first aspect, in a possible implementation manner, the coordinated cell set includes: at least two first sectors;

 The first sector is a sector in which at least one cell in which the base station is located has a path loss less than a preset threshold.

 With reference to the first aspect and the foregoing possible implementation manner, in another possible implementation manner, the cooperation management device acquires a user identity ID and resource scheduling information of the user equipment in the coordinated cell set by using at least one base station, Includes:

 The cooperation management device receives the user ID and the resource scheduling information of a user equipment in the first sector from at least one of the base stations;

 The first sector is within a coverage of a cell in which the base station is located. With reference to the first aspect and the foregoing possible implementation manner, in another possible implementation manner, the collaboration management device is the first user in a preset codebook set according to a user ID of the first user equipment. Before the device reselects the precoding matrix to indicate the PMI, the method further includes:

 The cooperation management device receives the first state information from the base station, where the first state information includes: channel state information and service state information of the user equipment in the first sector;

The channel state information includes: a signal to interference and noise ratio SINR of the user equipment, and an interference noise power of the user equipment, and interference noise of the user equipment. The voice power includes the interference noise power of the cell where the user equipment is located in the coordinated cell set, and the service state information includes the current traffic volume of the user equipment.

 With reference to the first aspect and the foregoing possible implementation manner, in another possible implementation manner, the collaboration management device is respectively configured in the preset codebook set according to the user ID of the at least one first user equipment The first user equipment reselects a precoding matrix to indicate a PMI, where the PMI is used to indicate an index of the codebook set, so that the first user equipment preprocesses data to be transmitted according to the codebook set indicated by the PMI. Encoding, and then causing the first user equipment to transmit the encoded data, including:

 The cooperative management device reselects the PMI for the first user equipment in the preset codebook set according to the first state information and the user ID of the at least one first user equipment;

 Transmitting, by the cooperation management device, at least one user ID of the first user equipment and the selected PMI to at least one of the base stations, so that the base station sends the user ID according to a user ID of the first user equipment Selecting the PMI to the first user equipment, and then causing the first user equipment to pre-code the data to be transmitted according to the codebook set indicated by the PMI, thereby enabling the first user equipment The encoded data is transmitted.

 A second aspect of the embodiments of the present invention further provides an uplink cooperative transmission method, where a coordinated cell set includes at least one user equipment, and the method includes:

 And acquiring, by the base station, a user ID and resource scheduling information of the user equipment in the coordinated cell set, where the resource scheduling information includes a time-frequency resource allocated by the base station to the user equipment;

The base station sends the user ID of the user equipment and the resource scheduling information to the cooperation management device, so that the cooperation management device determines, according to the resource scheduling information, the user ID of the at least one first user equipment in the coordinated cell set. The first user equipment is a user equipment in which the coordinated cell occupies the same time-frequency resource as the other user equipment, and then the cooperative management device is preset according to the user ID of the at least one first user equipment. Reselecting the first user equipment in the codebook set PMI, the PMI is used to indicate an index of the codebook set;

 Receiving, by the base station, a user ID of the at least one first user equipment from the cooperation management device and the PMI that the cooperation management device reselects for the first user equipment;

 Sending, by the base station, the PMI that the cooperation management device reselects to the first user equipment to the first user equipment, according to the user ID of the first user equipment, so that the first user equipment is configured according to the The codebook indicated by the PMI pre-encodes the data to be transmitted, so that the first user equipment transmits the encoded data.

 With reference to the second aspect, in a possible implementation manner, the coordinated cell set includes: at least two first sectors;

 The first sector is a sector in which the path loss in the cell where the base station is located is less than a preset threshold, and the first sector is in a coverage area of the cell where the base station is located.

 With reference to the second aspect and the foregoing possible implementation manner, in another possible implementation, the acquiring, by the base station, the user identity ID and the resource scheduling information of the user equipment in the coordinated cell set, includes:

 The base station acquires first state information, where the first state information includes: channel state information and service state information of the user equipment in the collaboration cell set;

 The base station schedules the user equipment according to the channel state information and the service state information, allocates time-frequency resources to the user equipment, and generates the resource scheduling information, where the resource scheduling information includes the base station is Describe the time-frequency resources allocated by the user equipment;

 The base station determines a user ID of the user equipment in the coordinated cell set, and the user equipment is in the coverage area.

 With reference to the second aspect and the foregoing possible implementation manner, in another possible implementation manner, the acquiring, by the base station, the first state information includes:

The base station performs channel estimation on the user equipment in the coordinated cell set, and acquires the first state information, where the first state information includes: the channel state information and the service state information; The channel state information includes: the PMI of the user equipment in the serving cell of the user equipment, the signal to interference and noise ratio SINR of the user equipment, and the interference noise power of the user equipment, the user equipment The interference noise power includes the interference noise power of the cell where the user equipment is located in the coordinated cell set, and the service state information includes the current traffic volume of the user equipment.

 With reference to the second aspect and the foregoing possible implementation manner, in another possible implementation manner, after the acquiring, by the base station, the first state information, the method further includes: sending, by the base station, the first state information To the cooperation management device, so that the cooperation management device is respectively the first user in the preset codebook set according to the first state information and the user ID of at least one of the first user devices. The device reselects the PMI.

 The third aspect of the embodiments of the present invention further provides a collaboration management device, where the collaboration cell set includes at least one user equipment, where the collaboration management device includes:

 And an acquiring unit, configured to acquire, by using at least one base station, a user identity ID and resource scheduling information of the user equipment in the coordinated cell set, where the resource scheduling information includes a time-frequency resource allocated by the base station to the user equipment;

 a determining unit, configured to determine, according to the resource scheduling information acquired by the acquiring unit, a user ID of the at least one first user equipment in the coordinated cell set, where the first user equipment is occupied by the coordinated cell and other user equipments User equipment of the same time-frequency resource;

 a selecting unit, configured to reselect a precoding matrix indication PMI for the first user equipment in the preset codebook set according to the user ID of the at least one first user equipment determined by the determining unit, where the PMI is An index used to indicate the set of codebooks, so that the first user equipment pre-codes the data to be transmitted according to the codebook indicated by the PMI, so that the first user equipment transmits the encoded data. .

 With reference to the third aspect, in a possible implementation manner, the coordinated cell set includes: at least two first sectors;

The first sector is a sector in which at least one cell in which the base station is located has a path loss less than a preset threshold. With reference to the third aspect and the foregoing possible implementation manner, in another possible implementation, the acquiring unit is further configured to receive the user of the user equipment in the first sector from at least one of the base stations ID and the resource scheduling information;

 The first sector is within a coverage of a cell in which the base station is located. With reference to the third aspect and the foregoing possible implementation manner, in another possible implementation manner, the collaboration management device further includes:

 a receiving unit, configured to receive, before the reselecting a precoding matrix indication PMI for the first user equipment in the preset codebook set, according to the user ID of the first user equipment, The first state information, the first state information includes: channel state information and service state information of the user equipment in the first sector, where the channel state information includes: a signal to interference and noise ratio SINR of the user equipment And the interference noise power of the user equipment, where the interference noise power of the user equipment includes interference noise power of the cell where the user equipment is located in at least one of the base stations in the coordinated cell set; the service status information includes the The current traffic of the user device.

 With reference to the third aspect and the foregoing possible implementation manners, in another possible implementation manner, the selecting unit includes:

 a selection module, configured to reselect the PMI for the first user equipment in the preset codebook set according to the first state information and the user ID of the at least one first user equipment;

 a sending module, configured to send at least one user ID of the first user equipment and the PMI selected by the selecting module to at least one of the base stations, so that the base station is configured according to a user ID of the first user equipment Sending the selected PMI to the first user equipment, and then causing the first user equipment to pre-code the data to be transmitted according to the codebook set indicated by the PMI, thereby enabling the The first user equipment transmits the encoded data.

 A fourth aspect of the embodiments of the present invention further provides a base station, where the coordinated cell set includes at least one user equipment, where the base station includes:

An acquiring unit, configured to acquire a user ID of the user equipment in the coordinated cell set And resource scheduling information, where the resource scheduling information includes a time-frequency resource allocated by the base station to the user equipment;

 a sending unit, configured to send a user of the user equipment acquired by the acquiring unit

And the resource scheduling information to the cooperation management device, so that the cooperation management device determines, according to the resource scheduling information, a user ID of the at least one first user equipment in the coordinated cell set, where the first user equipment is The cooperative cell is a user equipment that occupies the same time-frequency resource as the other user equipments, and then the cooperative management device is respectively the first in the preset codebook set according to the user ID of the at least one first user equipment. The user equipment reselects a PMI, where the PMI is used to indicate an index of the codebook set;

 a receiving unit, configured to receive a user ID of at least one of the first user equipments from the collaboration management device, and the PMI that is reselected by the collaboration management device for the first user equipment;

 The sending unit is further configured to send, according to the user ID of the first user equipment that is received by the receiving unit, the PMI that the collaboration management device reselects for the first user equipment to the first user equipment. And the first user equipment pre-encodes the data to be transmitted according to the codebook indicated by the PMI, so that the first user equipment transmits the encoded data.

 With reference to the fourth aspect, in a possible implementation manner, the coordinated cell set includes: at least two first sectors;

 The first sector is a sector in which the path loss in the cell where the base station is located is less than a preset threshold, and the first sector is in a coverage area of the cell where the base station is located.

 With reference to the fourth aspect and the foregoing possible implementation manner, in another possible implementation manner, the acquiring unit includes:

 And an acquiring module, configured to acquire the first state information by the base station, where the first state information includes: channel state information and service state information of the user equipment in the coordinated cell set;

An allocation module, configured to use the channel state information acquired according to the acquiring module, and The service state information is used to schedule the user equipment, allocate time-frequency resources for the user equipment, and generate the resource scheduling information, where the resource scheduling information includes time-frequency resources allocated by the base station to the user equipment;

 a determining module, configured to determine a user of the user equipment in the coordinated cell set

ID, the user equipment is within the coverage.

 With reference to the fourth aspect and the foregoing possible implementation manner, in another possible implementation manner, the acquiring module is further configured to perform channel estimation on the user equipment in the coordinated cell set, and obtain the first state. The first status information includes: the channel status information and the service status information;

 The channel state information includes: the PMI of the user equipment in the serving cell of the user equipment, the signal to interference and noise ratio SINR of the user equipment, and the interference noise power of the user equipment, the user equipment The interference noise power includes the interference noise power of the cell where the user equipment is located in the coordinated cell set, and the service state information includes the current traffic volume of the user equipment.

 With reference to the fourth aspect and the foregoing possible implementation manner, in another possible implementation manner, the sending unit is further configured to: after the acquiring unit acquires the first state information, send the first state information To the cooperation management device, so that the cooperation management device is respectively the first user in the preset codebook set according to the first state information and the user ID of at least one of the first user devices. The device reselects the PMI.

 A fifth aspect of the embodiments of the present invention further provides a collaboration management device, where the collaboration cell set includes at least one user equipment, where the collaboration management device includes:

a processor, configured to acquire, by using at least one base station, a user identity ID and resource scheduling information of the user equipment in the coordinated cell set, where the resource scheduling information includes a time-frequency resource allocated by the base station to the user equipment; Determining, by the resource scheduling information, a user ID of the at least one first user equipment in the coordinated cell set, where the first user equipment is a user equipment in which the coordinated cell occupies the same time-frequency resource as other user equipments; a user ID of the first user equipment, and reselecting a precoding matrix indication PMI for the first user equipment in the preset codebook set, respectively The PMI is used to indicate an index of the codebook set, so that the first user equipment pre-codes the data to be transmitted according to the codebook indicated by the PMI, so that the first user equipment transmits the encoded The data.

 With reference to the fifth aspect, in a possible implementation manner, the coordinated cell set includes: at least two first sectors;

 The first sector is a sector in which at least one cell in which the base station is located has a path loss less than a preset threshold.

 With reference to the fifth aspect and the foregoing possible implementation manner, in another possible implementation manner, the collaboration management device further includes:

 a receiver, configured to receive the user ID and the resource scheduling information of a user equipment in the first sector from at least one of the base stations;

 The first sector is within a coverage of a cell in which the base station is located. With reference to the fifth aspect and the foregoing possible implementation manner, in another possible implementation manner, the receiver is further configured to: in the processor, according to a user ID of the first user equipment, in a preset codebook Receiving first state information from the base station, where the first state information includes: channel state information of the user equipment in the first sector, before the reselecting the precoding matrix indicating PMI in the set And business status information;

 The channel state information includes: a signal to interference and noise ratio SINR of the user equipment and an interference noise power of the user equipment, where the interference noise power of the user equipment includes at least one of the user equipments in the coordinated cell set. The interference noise power of the cell where the base station is located; the service state information includes the current traffic volume of the user equipment.

 With reference to the fifth aspect and the foregoing possible implementation manner, in another possible implementation, the processor is further configured to: according to the first status information received by the receiver, and the at least one first user User ID of the device, in the preset codebook set, respectively, reselecting the PMI for the first user equipment;

 The collaboration management device further includes:

a transmitter, configured to send at least one of the first user settings determined by the processor a user ID and the selected PMI to at least one of the base stations, so that the base station sends the selected PMI to the first user equipment according to a user ID of the first user equipment, And the first user equipment pre-encodes the data to be transmitted according to the codebook set indicated by the PMI, so that the first user equipment transmits the encoded data.

 A sixth aspect of the embodiments of the present invention further provides a base station, where the coordinated cell set includes at least one user equipment, where the base station includes:

 a processor, configured to acquire a user ID and resource scheduling information of the user equipment in the coordinated cell set, where the resource scheduling information includes a time-frequency resource allocated by the base station to the user equipment;

 a transmitter, configured to send the user ID of the user equipment and the resource scheduling information acquired by the processor to the cooperation management device, so that the cooperation management device determines, according to the resource scheduling information, that the coordinated cell set is at least a user ID of a first user equipment, where the first user equipment is a user equipment in which the coordinated cell occupies the same time-frequency resource as other user equipments, and then the cooperative management device is configured according to at least one of the first users. The user ID of the device, in the preset codebook set, the PMI is reselected for the first user equipment, the PMI is used to indicate an index of the codebook set, and the receiver is configured to receive the collaboration management device. The user ID of the at least one of the first user equipment and the PMI that the cooperation management device reselects for the first user equipment;

 The transmitter is configured to send, according to the user ID of the first user equipment that is received by the receiver, the PMI that the collaboration management device reselects for the first user equipment to the first user equipment, The first user equipment is pre-coded according to the codebook to be transmitted according to the PMI, so that the first user equipment transmits the encoded data.

 With reference to the sixth aspect, in a possible implementation manner, the coordinated cell set includes: at least two first sectors;

The first sector is a sector in which the path loss of the cell where the base station is located is less than a preset threshold, and the first sector is covered by the cell where the base station is located. Within the scope.

 With reference to the sixth aspect and the foregoing possible implementation manner, in another possible implementation manner, the processor is further configured to acquire first state information, where the first state information includes: Decoding the channel state information and the service state information of the user equipment, scheduling the user equipment according to the channel state information and the service state information, allocating time-frequency resources for the user equipment, and generating the resource scheduling information, The resource scheduling information includes a time-frequency resource allocated by the base station to the user equipment, and a user ID of the user equipment in the coordinated cell set, where the user equipment is within the coverage.

 With reference to the sixth aspect and the foregoing possible implementation manner, in another possible implementation, the processor is further configured to perform channel estimation on the user equipment in the coordinated cell set, to obtain the first state. The first status information includes: the channel status information and the service status information;

 The channel state information includes: the PMI of the user equipment in the serving cell of the user equipment, the signal to interference and noise ratio SINR of the user equipment, and the interference noise power of the user equipment, the user equipment The interference noise power includes the interference noise power of the cell where the user equipment is located in the coordinated cell set, and the service state information includes the current traffic volume of the user equipment.

 With reference to the sixth aspect and the foregoing possible implementation manner, in another possible implementation manner, the transmitter is further configured to: after the processor acquires the first state information, send the first state information To the cooperation management device, so that the cooperation management device is respectively the first user in the preset codebook set according to the first state information and the user ID of at least one of the first user devices. The device reselects the PMI.

The uplink cooperative transmission method and device provided by the embodiment of the present invention, the collaboration management device acquires a user identity ID and resource scheduling information of the user equipment in the coordinated cell set by using at least one base station, where the resource scheduling information includes the base station a time-frequency resource allocated by the user equipment, and then determining, according to the resource scheduling information, a user ID of the at least one first user equipment in the coordinated cell set, where the first user equipment is And the user equipment that occupies the same time-frequency resource with the other user equipments, and finally re-selects the pre-coding for the first user equipment in the preset codebook set according to the user ID of the at least one first user equipment. The matrix indicates a PMI, the PMI is used to indicate an index of the codebook set, so that the first user equipment pre-codes the data to be transmitted according to the codebook indicated by the PMI, thereby enabling the first user The device transmits the encoded data. Compared with the prior art, the cooperative management device can reselect the PMI for the user equipment that the coordinated cell occupies the same time-frequency resource, so that the part of the user equipment can cooperate with the lower interference. Transmitting data can suppress interference between user equipments during uplink transmission and improve communication performance.

DRAWINGS

 In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.

 1 is a flowchart of an uplink cooperative transmission method according to Embodiment 1 of the present invention; FIG. 2 is a flowchart of an uplink cooperative transmission method according to Embodiment 2 of the present invention; FIG. 3 is a flowchart of Embodiment 3 of the present invention; FIG. 4 is a schematic diagram of a composition of a collaboration management device according to Embodiment 4 of the present invention; FIG. 5 is a schematic diagram of a composition of another collaboration management device according to Embodiment 4 of the present invention; FIG. 7 is a schematic structural diagram of another base station according to Embodiment 5 of the present invention; FIG. 7 is a schematic structural diagram of a base station according to Embodiment 5 of the present invention;

 8 is a schematic structural diagram of another base station according to Embodiment 5 of the present invention;

 9 is a schematic structural diagram of a cooperation management device according to Embodiment 6 of the present invention; FIG. 10 is a schematic diagram of a composition of a base station according to an embodiment of the present invention;

FIG. 11 is a schematic diagram of a network deployment according to an embodiment of the present invention. detailed description

 The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

 In addition, the terms "system" and "network" are often used interchangeably herein. The term "and/or" in this context is merely an association describing the associated object, indicating that there can be three relationships, for example, A and / or B, which can mean: A exists separately, and both A and B exist separately. B these three situations. In addition, the character " /" in this article generally indicates that the contextual object is an "or" relationship. Example 1

 An embodiment of the present invention provides an uplink cooperative transmission method, as shown in FIG. 1 , including:

S101: The collaboration management device acquires, by using at least one base station, a user identity (ID, ID) and resource scheduling information of the user equipment in the coordinated cell set, where the resource scheduling information includes a time-frequency resource allocated by the base station to the user equipment.

 The coordinated cell set includes: at least two first sectors; the first sector is a sector in which the path loss in the cell where the at least one base station is located is less than a preset threshold. The first sector is within the coverage of the cell in which the base station is located.

 Specifically, the cooperation management device may receive the user ID and resource scheduling information of the user equipment in the first sector from the at least one base station.

It should be noted that the user equipment in the embodiment of the present invention may include user equipment at the edge of the cell. In the prior art, in order to improve the performance of the user equipment at the cell edge, a Coordinated Multiple Points (CoMP) receiving technology is proposed. In the uplink cooperative transmission method proposed by the embodiment of the present invention, the cooperative management device may The user equipment resource scheduling information and the channel information are shared by different cells, and the Precording Matrix Indicator (PMI) of the user equipment is selected to implement the data transmission between different user equipments in the multi-cell. Disturbance suppression.

 5102. The collaboration management device determines, according to the resource scheduling information, a user ID of the at least one first user equipment in the coordinated cell set.

 The first user equipment is a user equipment in which the coordinated cell group occupies the same time-frequency resource as other user equipments.

 5103. The collaboration management device reselects a PMI for the first user equipment in the preset codebook set according to the user ID of the at least one first user equipment, where the PMI is used to indicate an index of the codebook set, so that the first user equipment is configured according to the first user equipment. The codebook indicated by the PMI pre-encodes the transmitted data, thereby causing the first user equipment to transmit the encoded data.

 Further, the cooperation management device is based on the user of the at least one first user device

The method of the embodiment of the present invention may further include: the cooperation management device receives the first state information from the base station, where the first state information includes: Channel state information and service state information of the user equipment in the sector.

 The channel state information includes: a signal to interference plus noise ratio (SINR) of the user equipment and an interference noise power of the user equipment, where the interference noise power of the user equipment includes at least one base station where the user equipment is concentrated in the coordinated cell. The interference noise power of the cell; the service status information includes the current traffic of the user equipment.

Specifically, the collaboration management device reselects the PMI for the first user equipment in the preset codebook set according to the user ID of the at least one first user equipment, so that the first user equipment sends the data according to the codebook set indicated by the PMI. Performing precoding, and then causing the first user equipment to transmit the encoded data, may include: the collaboration management device is respectively the first in the preset codebook set according to the first state information and the user ID of the at least one first user equipment The user equipment reselects the PMI; the cooperation management device sends the user ID of the at least one first user equipment and the selected PMI to the at least one base station, so that the base station sends the selected PMI to the first user equipment according to the user ID of the first user equipment. And causing the first user equipment to pre-code the data to be transmitted according to the codebook set indicated by the PMI, so that the first user equipment transmits the encoded data. According to the uplink cooperative transmission method provided by the embodiment of the present invention, the cooperation management device acquires the user ID and the resource scheduling information of the user equipment in the coordinated cell set by using the at least one base station, where the resource scheduling information includes the time-frequency resource allocated by the base station to the user equipment, and then according to the resource. The scheduling information determines a user ID of the at least one first user equipment in the coordinated cell set, where the first user equipment is a user equipment in which the coordinated cell group occupies the same time-frequency resource as other user equipments, and finally, according to the user ID of the at least one first user equipment, Reselecting a precoding matrix indication PMI for the first user equipment in the preset codebook set, where the PMI is used to indicate an index of the codebook set, so that the first user equipment precodes the data to be transmitted according to the codebook indicated by the PMI. The first user equipment is then caused to transmit the encoded data. Compared with the prior art, the cooperative management device may reselect the PMI for the user equipment that the coordinated cell occupies the same time-frequency resource, so that the part of the user equipment can cooperate with the lower interference. Transmitting data can suppress interference between user equipments during uplink transmission and improve communication performance. Example 2

 An embodiment of the present invention provides an uplink cooperative transmission method. As shown in FIG. 2, the method includes: S201: A base station acquires a user ID and resource scheduling information of a user equipment in a coordinated cell set.

 The resource scheduling information includes a time-frequency resource allocated by the base station to the user equipment. The cooperative cell set may include: at least two first sectors; the first sector is a sector in which the path loss in the cell where the at least one base station is located is less than a preset threshold, and the first sector is within the coverage of the cell where the base station is located.

Specifically, the acquiring, by the base station, the user ID and the resource scheduling information of the user equipment in the coordinated cell set may include: the base station acquiring the first state information, where the first state information includes: channel state information and service state information of the user equipment in the coordinated cell set; Scheduling the user equipment according to the channel state information and the service state information, allocating the time-frequency resource to the user equipment, and generating the resource scheduling information, where the resource scheduling information includes the time-frequency resource allocated by the base station to the user equipment; the base station determining the user equipment of the user equipment in the coordinated cell group ID, user device is in coverage. The base station may perform channel estimation on the user equipment in the coordinated cell set to obtain the first state information.

 5202. The base station sends the user ID and the resource scheduling information of the user equipment to the cooperation management device, so that the cooperation management device determines, according to the resource scheduling information, the user ID of the at least one first user equipment in the coordinated cell set, where the first user equipment is the coordinated cell concentration and The other user equipment occupies the user equipment of the same time-frequency resource, and the cooperation management device re-selects the PMI for the first user equipment in the preset codebook set according to the user ID of the at least one first user equipment, and the PMI is used to indicate The index of the codebook collection.

 S203. The base station receives the user ID of the at least one first user equipment from the cooperation management device and the PMI that the cooperation management device reselects for the first user equipment.

 S204, the base station sends, according to the user ID of the first user equipment, the PMI that the cooperation management device reselects for the first user equipment to the first user equipment, so that the first user equipment pre-codes the data to be transmitted according to the codebook indicated by the PMI, and further The first user equipment is caused to transmit the encoded data.

 After the base station acquires the first state information, the method of the embodiment of the present invention may further include: the base station sending the first state information to the cooperation management device, so that the collaboration management device is configured according to the first state information and the at least one first user equipment. User ID, reselecting the PMI for the first user equipment in the preset codebook set.

In the uplink cooperative transmission method provided by the embodiment of the present invention, the base station acquires the user ID and resource scheduling information of the user equipment in the coordinated cell set, and then sends the user ID and resource scheduling information of the user equipment to the cooperation management device, so that the collaboration management device according to the resource The scheduling information determines a user ID of the at least one first user equipment in the coordinated cell set, where the first user equipment is a user equipment in which the coordinated cell group occupies the same time-frequency resource as the other user equipment, and then the cooperation management device is configured according to the at least one first user equipment. User ID, reselecting the PMI for the first user equipment in the preset codebook set, and then receiving the user ID of the at least one first user equipment from the cooperation management device and the re-selection of the first user equipment by the cooperation management device The PMI is configured to send, according to the user ID of the first user equipment, the PMI that the cooperation management device reselects for the first user equipment to the first user equipment, so that the first user equipment performs the data to be transmitted according to the codebook indicated by the PMI. Precoding, which in turn causes the first user equipment to transmit the encoded data. Example 3

 An embodiment of the present invention provides an uplink cooperative transmission method, as shown in FIG. 3, including:

S301. The base station acquires first state information, where the first state information includes: channel state information and service state information of the user equipment in the coordinated cell set.

 Specifically, the base station may perform channel estimation on the user equipment in the coordinated cell group to obtain the first state information, where the first state information includes: channel state information and service state information.

 The channel state information includes: a PMI of the user equipment in the serving cell of the user equipment, an SINR of the user equipment, and an interference noise power of the user equipment, where the interference noise power of the user equipment includes at least one base station where the user equipment is in the coordinated cell set. The interference noise power of the cell; the service status information includes the current traffic of the user equipment.

 5302. The base station schedules the user equipment according to the channel state information and the service state information, allocates a time-frequency resource to the user equipment, and generates resource scheduling information, where the resource scheduling information includes a time-frequency resource allocated by the base station to the user equipment.

 The base station of the serving cell of the user equipment of the coordinated cell may allocate time-frequency resources to the user equipment according to the PMI of the user equipment, the SINR of the user equipment, the interference noise power of the user equipment, and the current traffic volume of the user equipment. .

For example, if the coordinated cell set includes two user equipments: user equipment A and user equipment B; the serving cell of user equipment A is cell 1, and the serving cell of user equipment B is cell 2. As shown in FIG. 1 , the channel coefficient ⁷ ^ may be: PMI and SINR of the user equipment A in use; the channel coefficient ⁷ ^ 2 may be: interference noise power of the user equipment A in use cell 2; channel coefficient ⁷ ^ The user equipment B may use the PMI and SINR of the cell 2; the channel coefficient ⁷ ^2 may be: the interference noise power of the user equipment B in use of the cell 1.

It should be noted that, in this embodiment, the interference noise power of the user equipment may include interference noise power of the user equipment in at least one other cell, where the other small The area is not the serving cell of the user equipment.

 S303. The base station determines a user ID of the user equipment in the coordinated cell set.

 Illustratively, the base station may determine which user equipments included in the coordinated cell set are included in the user equipment in the coverage of the base station. Specifically, the user equipment in the coordinated cell set may include the user equipment at the cell edge and/or User equipment that is interfered by other cells.

 The coordinated cell set includes: at least two first sectors; the first sector is a sector in which the path loss in the cell where the at least one base station is located is less than a preset threshold. The first sector is within the coverage of the cell in which the base station is located. The preset threshold may be the lowest value of the path loss in the cell covered by the base station that is preset by the base station to maintain normal communication of the user equipment.

 It should be noted that, in the embodiment of the present invention, S301-S302 may be executed first, and then S303 may be executed; S303 may be executed first, then S301-S302 may be executed; or S301-S302 and S303 may be simultaneously executed. In summary, this embodiment does not limit the order in which S301-S302 and S303 are executed.

 5304. The base station sends the user ID and resource scheduling information of the user equipment to the collaborative management device.

 Specifically, the base station may send the user ID and the resource scheduling information of the user equipment to the cooperation management device, so that the cooperation management device uniformly manages the user ID and resource scheduling information of the user equipment received from each base station, and determines that the same time-frequency resource is occupied. User equipment, and re-assign the PMI to the user equipment.

 S305. The collaboration management device determines, according to the resource scheduling information, a user ID of the at least one first user equipment in the coordinated cell set, where the first user equipment is a user equipment in which the coordinated cell group and the other user equipment occupy the same time-frequency resource.

The cooperation management device may receive the user ID and resource scheduling information of the user equipment from the at least one base station, where the resource scheduling information includes a time-frequency resource allocated by the base station to the user equipment, and is determined according to the time-frequency resource allocated by the base station to the user equipment. The user ID of the user equipment that the other user equipment occupies the same time-frequency resource, that is, the user ID of the first user equipment. Further, in order to effectively suppress the interference of the user equipment in the uplink transmission and improve the communication performance of the cell edge user equipment, the base station may send the obtained first state information to the cooperation management device, so that the cooperation management device can be managed according to cooperation. The device reselects the PMI for the first user equipment in the preset codebook set according to the first state information and the user ID of the at least one first user equipment. The method of the embodiment of the present invention may further include S306:

 S306. The cooperation management device receives the first state information from the base station, where the first state information includes: channel state information and service state information of the user equipment in the first sector.

 The channel state information includes: an SINR of the user equipment and an interference noise power of the user equipment, where the interference noise power of the user equipment includes interference noise power of the cell where the user equipment is located in the coordinated cell set, and the service state information includes the user equipment. Current business volume.

 S307. The collaboration management device reselects the PMI for the first user equipment in the preset codebook set according to the first state information and the user ID of the at least one first user equipment.

 The first user equipment is a user equipment in which the coordinated cell concentrates the same time-frequency resource as other user equipments. The preset codebook set may include at least one codebook that can be used for precoding by the user equipment, and the PMI is used to indicate an index of the codebook set; therefore, the cooperation management device may be based on the first state information (in the first sector) The channel state information and the service state information of the user equipment and the user ID of the at least one first user equipment respectively reselect the PMI for the first user equipment in the preset codebook set.

 5308. The collaboration management device sends the user ID of the at least one first user equipment and the selected PMI to the at least one base station.

 S309. The base station sends, according to the user ID of the first user equipment, the PMI that the cooperation management device reselects for the first user equipment to the first user equipment.

 The base station may send, according to the user ID of each first user equipment, the PMI that the cooperation management device reselects for the first user equipment to the first user equipment.

 The first user equipment pre-codes the data to be transmitted according to the codebook indicated by the PMI, and transmits the encoded data.

The uplink cooperative transmission method provided by the embodiment of the present invention, the collaborative management device passes to The base station acquires the user ID and the resource scheduling information of the user equipment in the coordinated cell set, and the resource scheduling information includes the time-frequency resource allocated by the base station to the user equipment, and then determines the user ID of the at least one first user equipment in the coordinated cell set according to the resource scheduling information. The first user equipment is a user equipment in which the coordinated cell occupies the same time-frequency resource as the other user equipments, and finally re-selects the first user equipment in the preset codebook set according to the user ID of the at least one first user equipment. The precoding matrix indicates a PMI, and the PMI is used to indicate an index of the codebook set, so that the first user equipment precodes the data to be transmitted according to the codebook indicated by the PMI, so that the first user equipment transmits the encoded data. Compared with the prior art, the cooperative management device may reselect the PMI for the user equipment that the coordinated cell occupies the same time-frequency resource, so that the part of the user equipment can cooperate with the lower interference. Transmitting data can suppress interference between user equipments during uplink transmission and improve communication performance. Example 4

 The embodiment of the present invention provides a collaboration management device, where the coordinated cell set includes at least one user equipment. As shown in FIG. 4, the collaboration management device includes: an obtaining unit 41, a determining unit 42, and a selecting unit 43.

 The acquiring unit 41 is configured to acquire, by using at least one base station, a user identity ID and resource scheduling information of the user equipment in the coordinated cell set, where the resource scheduling information includes a time-frequency resource allocated by the base station to the user equipment.

 a determining unit 42, configured to determine, according to the resource scheduling information acquired by the acquiring unit 41, a user ID of the at least one first user equipment in the coordinated cell set, where the first user equipment is the coordinated cell set and other users The user equipment that the device occupies the same time-frequency resource.

The selecting unit 43 is configured to reselect the precoding matrix indication PMI for the first user equipment in the preset codebook set according to the user ID of the at least one first user equipment determined by the determining unit 42 The PMI is used to indicate an index of the codebook set, so that the first user equipment pre-codes the data to be transmitted according to the codebook indicated by the PMI, so that the first user equipment transmits the encoded of Data.

 Further, the coordinated cell set includes: at least two first sectors; wherein the first sector is a sector in which at least one cell in which the base station is located has a path loss less than a preset threshold.

 Further, the acquiring unit 41 is further configured to receive the user ID and the resource scheduling information of the user equipment in the first sector from the at least one of the base stations, where the first sector is The coverage of the cell in which the base station is located. Further, as shown in FIG. 5, the collaboration management device may further include: a receiving unit 44.

 The receiving unit 44 is configured to receive, before the reselecting the precoding matrix indication PMI for the first user equipment in the preset codebook set, according to the user ID of the first user equipment, The first state information of the base station, where the first state information includes: channel state information and service state information of the user equipment in the first sector.

 The channel state information includes: a signal to interference and noise ratio SINR of the user equipment and an interference noise power of the user equipment, where the interference noise power of the user equipment includes at least one of the user equipments in the coordinated cell set. The interference noise power of the cell where the base station is located; the service state information includes the current traffic volume of the user equipment.

 Further, as shown in FIG. 6, the selecting unit 43 includes: a selecting module 43 1 and a sending module 432.

 The selecting module 43 1 is configured to reselect the PMI for the first user equipment in the preset codebook set according to the first state information and the user ID of the at least one first user equipment.

a sending module 432, configured to send at least one user ID of the first user equipment and the PMI selected by the selecting module 43 1 to at least one of the base stations, so that the base station is configured according to the first user equipment Sending the selected PMI to the first user equipment, and then causing the first user equipment to precode the data to be transmitted according to the codebook set indicated by the PMI, and further Make the first A user equipment transmits the encoded data.

 It should be noted that the specific description of some of the functional modules in the cooperation management device provided by the embodiment of the present invention may refer to the corresponding content in the method embodiment, and the present embodiment is not accompanied by a detailed description herein.

 The collaboration management device provided by the embodiment of the present invention may obtain, by using at least one base station, a user ID and resource scheduling information of the user equipment in the coordinated cell set, where the resource scheduling information includes a time-frequency resource allocated by the base station to the user equipment, and then determined according to the resource scheduling information. The cooperative cell is configured with the user ID of the at least one first user equipment, where the first user equipment is a user equipment that uses the same time-frequency resource in the coordinated cell set and other user equipments, and finally, according to the user ID of the at least one first user equipment, Resetting the precoding matrix indication PMI to the first user equipment in the codebook set, the PMI is used to indicate the index of the codebook set, so that the first user equipment precodes the data to be transmitted according to the codebook indicated by the PMI, and further A user equipment transmits the encoded data. Compared with the prior art, the cooperative management device may reselect the PMI for the user equipment that the coordinated cell occupies the same time-frequency resource, so that the part of the user equipment can cooperate with the lower interference. Transmitting data can suppress interference between user equipments during uplink transmission and improve communication performance. Example 5

 The embodiment of the present invention further provides a base station, where the coordinated cell set includes at least one user equipment. As shown in FIG. 7, the base station includes: an obtaining unit 51, a sending unit 52, and a receiving unit 53.

 The obtaining unit 51 is configured to acquire a user ID and resource scheduling information of the user equipment in the coordinated cell set, where the resource scheduling information includes a time-frequency resource allocated by the base station to the user equipment.

The sending unit 52 is configured to send the user ID of the user equipment and the resource scheduling information acquired by the acquiring unit 51 to the cooperation management device, so that the cooperation management device determines the coordinated cell according to the resource scheduling information. Concentrating at least one user ID of the first user equipment, where the first user equipment is concentrated and used by the coordinated community The user equipment occupies the user equipment of the same time-frequency resource, and the cooperative management device re-selects the PMI for the first user equipment in the preset codebook set according to the user ID of the at least one first user equipment. The PMI is used to indicate an index of the codebook set.

 The receiving unit 53 is configured to receive a user ID of the at least one of the first user equipments from the collaboration management device, and the PMI that is reselected by the collaboration management device for the first user equipment.

 The sending unit 52 is further configured to send, according to the user ID of the first user equipment that the receiving unit 53 receives, the PMI that the cooperation management device reselects for the first user equipment to the first And the user equipment, so that the first user equipment pre-codes the data to be transmitted according to the codebook indicated by the PMI, so that the first user equipment transmits the encoded data.

 Further, the coordinated cell set includes: at least two first sectors, where the first sector is a sector in which a path loss in the cell where the base station is located is less than a preset threshold, the first The sector is within the coverage of the cell in which the base station is located.

 Further, as shown in FIG. 8, the obtaining unit 51 includes: an obtaining module 51 1 , an allocating module 512 , and a determining module 513 .

 The acquiring module 51 1 is configured to acquire, by the base station, the first state information, where the first state information includes: channel state information and service state information of the user equipment in the coordinated cell set.

 The allocating module 512 is configured to schedule the user equipment according to the channel state information and the service state information acquired by the acquiring module 51 1 , allocate time-frequency resources to the user equipment, and generate the resource scheduling information. The resource scheduling information includes a time-frequency resource allocated by the base station to the user equipment.

 The determining module 513 is configured to determine a user ID of the user equipment in the coordinated cell set, where the user equipment is in the coverage range.

Further, the acquiring module 51 1 is further configured to perform channel estimation on the user equipment in the coordinated cell set, and acquire the first state information, where the first state information includes: the channel state information and The service status information. The channel state information includes: the PMI of the user equipment in the serving cell of the user equipment, the signal to interference and noise ratio SINR of the user equipment, and the interference noise power of the user equipment, the user equipment The interference noise power includes the interference noise power of the cell where the user equipment is located in the coordinated cell set, and the service state information includes the current traffic volume of the user equipment.

 Further, the sending unit 52 is further configured to: after the acquiring unit 51 acquires the first state information, send the first state information to the collaboration management device, so that the collaboration management device is configured according to the Decoding the first state information and the user ID of the at least one first user equipment, and reselecting the PMI for the first user equipment in the preset codebook set.

 It should be noted that the specific description of some of the functional modules in the base station provided by the embodiment of the present invention may be referred to the corresponding content in the method embodiment, which is not described in detail in this embodiment.

 The base station provided by the embodiment of the present invention may obtain the user ID and resource scheduling information of the user equipment in the coordinated cell set, and then send the user ID and resource scheduling information of the user equipment to the cooperation management device, so that the cooperation management device determines according to the resource scheduling information. The cooperative cell is configured with the user ID of the at least one first user equipment, where the first user equipment is a user equipment that uses the same time-frequency resource as the other user equipments in the coordinated cell, and then the cooperation management device is configured according to the user ID of the at least one first user equipment. Reselecting the PMI for the first user equipment in the preset codebook set, and then receiving the user ID of the at least one first user equipment from the cooperation management device and the PMI that the cooperation management device reselects for the first user equipment, And transmitting, by the user ID of the first user equipment, the PMI that the cooperation management device reselects to the first user equipment to the first user equipment, so that the first user equipment pre-codes the data to be transmitted according to the code code indicated by the PMI, and further a user equipment transmits the encoded data. Example 6

The embodiment of the present invention further provides a collaboration management device, where the coordinated cell set includes at least one user equipment. As shown in FIG. 9, the collaboration management device may include: Processor 61.

 The processor 61 is configured to acquire, by using at least one base station, a user identity ID and resource scheduling information of the user equipment in the coordinated cell set, where the resource scheduling information includes a time-frequency resource allocated by the base station to the user equipment; Determining, by the resource scheduling information, a user ID of the at least one first user equipment in the coordinated cell set, where the first user equipment is a user equipment in which the coordinated cell concentrates with the same time-frequency resource as other user equipments; according to at least one The user ID of the first user equipment is used to reselect a precoding matrix indication PMI for the first user equipment in the preset codebook set, where the PMI is used to indicate an index of the codebook set, so that the The first user equipment pre-codes the data to be transmitted according to the codebook indicated by the PMI, so that the first user equipment transmits the encoded data.

 Further, the coordinated cell set includes: at least two first sectors; wherein the first sector is a sector in which at least one cell in which the base station is located has a path loss less than a preset threshold.

 Further, the cooperation management device may further include: a receiver 62.

 The receiver 62 is configured to receive the user ID and the resource scheduling information of the user equipment in the first sector from at least one of the base stations.

 The first sector is within a coverage of a cell in which the base station is located. Further, the receiver is further configured to: before the processor 61 reselects the precoding matrix indication PMI for the first user equipment in the preset codebook set according to the user ID of the first user equipment, And receiving the first state information from the base station, where the first state information includes: channel state information and service state information of the user equipment in the first sector.

 The channel state information includes: a signal to interference and noise ratio SINR of the user equipment and an interference noise power of the user equipment, where the interference noise power of the user equipment includes at least one of the user equipments in the coordinated cell set. The interference noise power of the cell where the base station is located; the service state information includes the current traffic volume of the user equipment.

Further, the processor 61 is further configured to receive according to the receiver And the first state information and the user ID of the at least one first user equipment, respectively, reselecting the PMI for the first user equipment in the preset codebook set.

 Further, as shown in FIG. 9, the collaboration management device may further include: a transmitter 63.

 a transmitter 63, configured to send, by the processor 61, a user ID of the at least one first user equipment and the selected PMI to at least one of the base stations, so that the base station is according to the first user Sending, by the user ID of the device, the selected PMI to the first user equipment, and then causing the first user equipment to pre-code the data to be transmitted according to the codebook set indicated by the PMI, The first user equipment is then caused to transmit the encoded data.

 It should be noted that the specific description of some of the functional modules in the cooperation management device provided by the embodiment of the present invention may refer to the corresponding content in the method embodiment, and the present embodiment is not accompanied by a detailed description herein.

 The collaboration management device provided by the embodiment of the present invention may obtain, by using at least one base station, a user ID and resource scheduling information of the user equipment in the coordinated cell set, where the resource scheduling information includes a time-frequency resource allocated by the base station to the user equipment, and then determined according to the resource scheduling information. The cooperative cell is configured with the user ID of the at least one first user equipment, where the first user equipment is a user equipment that uses the same time-frequency resource in the coordinated cell set and other user equipments, and finally, according to the user ID of the at least one first user equipment, Resetting the precoding matrix indication PMI to the first user equipment in the codebook set, the PMI is used to indicate the index of the codebook set, so that the first user equipment precodes the data to be transmitted according to the codebook indicated by the PMI, and further A user equipment transmits the encoded data. Compared with the prior art, the cooperative management device may reselect the PMI for the user equipment that the coordinated cell occupies the same time-frequency resource, so that the part of the user equipment can cooperate with the lower interference. Transmitting data can suppress interference between user equipments during uplink transmission and improve communication performance.

 Example 7

The embodiment of the present invention further provides a base station, where the coordinated cell set includes at least one user equipment. As shown in FIG. 10, the base station includes: a processor 71, a transmitter 72, and a connection. Receiver 73.

 The processor 71 is configured to acquire a user ID and resource scheduling information of the user equipment in the coordinated cell set, where the resource scheduling information includes a time-frequency resource allocated by the base station to the user equipment.

 The transmitter 72 is configured to send the user ID of the user equipment and the resource scheduling information acquired by the processor 71 to the cooperation management device, so that the cooperation management device determines the coordinated cell according to the resource scheduling information. Concentrating the user ID of the at least one first user equipment, where the first user equipment is a user equipment in which the coordinated cell occupies the same time-frequency resource as other user equipments, and then the cooperative management device is configured according to at least one of the foregoing a user ID of a user equipment, in the preset codebook set, respectively, reselecting a PMI for the first user equipment, where the PMI is used to indicate an index of the codebook set.

 The receiver 73 is configured to receive a user ID of the at least one of the first user equipments from the collaboration management device and the PMI that is reselected by the collaboration management device for the first user equipment.

 The transmitter 72 is configured to send, according to the user ID of the first user equipment received by the receiver 73, the PMI that the cooperation management device reselects for the first user equipment to the first user. The device, configured to: the first user equipment pre-codes the data to be transmitted according to the codebook indicated by the PMI, and then causes the first user equipment to transmit the encoded data.

 Further, the coordinated cell set includes: at least two first sectors, where the first sector is a sector in which a path loss in the cell where the base station is located is less than a preset threshold, the first The sector is within the coverage of the cell in which the base station is located.

Further, the processor 71 is further configured to acquire the first state information, where the first state information includes: channel state information and service state information of the user equipment in the coordinated cell set; according to the channel state The information and the service status information are used to schedule the user equipment, allocate time-frequency resources to the user equipment, and generate the resource scheduling information, where the resource scheduling information includes time-frequency resources allocated by the base station to the user equipment. Determining a user ID of the user equipment in the coordinated cell set, The user equipment is within the coverage.

 Further, the processor 71 is further configured to: perform channel estimation on the user equipment in the coordinated cell set, and acquire the first state information, where the first state information includes: the channel state information and the Business status information.

 The channel state information includes: the PMI of the user equipment in the serving cell of the user equipment, the signal to interference and noise ratio SINR of the user equipment, and the interference noise power of the user equipment, the user equipment The interference noise power includes the interference noise power of the cell where the user equipment is located in the coordinated cell set, and the service state information includes the current traffic volume of the user equipment.

 Further, the transmitter 72 is further configured to: after the processor 71 acquires the first state information, send the first state information to the collaboration management device, so that the collaboration management device is configured according to the Decoding the first state information and the user ID of the at least one first user equipment, and reselecting the PMI for the first user equipment in the preset codebook set.

 It should be noted that the specific description of some of the functional modules in the base station provided by the embodiment of the present invention may be referred to the corresponding content in the method embodiment, which is not described in detail in this embodiment.

The base station provided by the embodiment of the present invention may obtain the user ID and resource scheduling information of the user equipment in the coordinated cell set, and then send the user ID and resource scheduling information of the user equipment to the cooperation management device, so that the cooperation management device determines according to the resource scheduling information. The cooperative cell is configured with the user ID of the at least one first user equipment, where the first user equipment is a user equipment that uses the same time-frequency resource as the other user equipments in the coordinated cell, and then the cooperation management device is configured according to the user ID of the at least one first user equipment. Reselecting the PMI for the first user equipment in the preset codebook set, and then receiving the user ID of the at least one first user equipment from the cooperation management device and the PMI that the cooperation management device reselects for the first user equipment, And transmitting, by the user ID of the first user equipment, the PMI that the cooperation management device reselects to the first user equipment to the first user equipment, so that the first user equipment pre-codes the data to be transmitted according to the code code indicated by the PMI, and further A user equipment transmits the encoded data. Through the description of the above embodiments, those skilled in the art can clearly understand that for the convenience and brevity of the description, only the division of the above functional modules is illustrated. In practical applications, the above functions can be allocated according to needs. It is completed by different functional modules, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. For the specific working process of the system, the device and the unit described above, refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

 In the several embodiments provided by the present application, it should be understood that the disclosed system, apparatus, and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the modules or units is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be used. Combined or can be integrated into another system, or some features can be ignored, or not executed. In addition, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical, mechanical or otherwise.

 The units described as separate components may or may not be physically separated, and the components displayed as the units may or may not be physical units, and may be located in one place or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiment of the present embodiment.

 In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may contribute to the prior art or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium. , including several instructions All or part of the steps of the method of the various embodiments of the present invention are performed by a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor. The foregoing storage medium includes: a U disk, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. .

 The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims

claims 1. An uplink coordinated transmission method, characterized in that the coordinated cell set contains at least one user equipment, and the method includes: The collaborative management device obtains the user identity ID and resource scheduling information of the user equipment in the coordinated cell set through at least one base station, where the resource scheduling information includes the time-frequency resources allocated by the base station to the user equipment; The cooperation management device determines the user ID of at least one first user equipment in the coordinated cell set based on the resource scheduling information. The first user equipment is a user equipment that occupies the same time-frequency resources as other user equipment in the coordinated cell set. User equipment; The collaboration management device reselects a precoding matrix indication PMI for the first user equipment in a preset codebook set according to the user ID of at least one first user equipment, and the PMI is used to indicate the code The index of this set is used to enable the first user equipment to precode the data to be transmitted according to the codebook indicated by the PMI, and then enable the first user equipment to transmit the encoded data. 2. The uplink coordinated transmission method according to claim 1, characterized in that the coordinated cell set includes: at least two first sectors; Wherein, the first sector is a sector in which the path loss is less than a preset threshold in at least one cell in which the base station is located. 3. The uplink coordinated transmission method according to claim 1 or 2, characterized in that, the cooperation management device obtains the user identity ID and resource scheduling information of the user equipment in the coordinated cell set through at least one base station, including : The cooperative management device receives the user ID and the resource scheduling information of the user equipment in the first sector from at least one of the base stations; Wherein, the first sector is within the coverage of the cell where the base station is located. 4. The uplink cooperative transmission method according to any one of claims 1 to 3, characterized in that the cooperation management device is the first user equipment in the preset codebook set based on the user ID of the first user equipment. Before the first user equipment reselects the precoding matrix indication PMI, the method further includes: The cooperation management device receives first status information from the base station, and the first The status information includes: channel status information and service status information of the user equipment in the first sector; Wherein, the channel state information includes: signal-to-interference-to-noise ratio of the user equipment SINR and the interference noise power of the user equipment, the interference noise power of the user equipment includes the interference noise power of the user equipment in the cell where at least one of the base stations in the coordinated cell set is located; the service status information includes the Describes the current traffic volume of user equipment. 5. The uplink cooperative transmission method according to claim 4, wherein the cooperation management device determines the first user equipment in the preset codebook set according to the user ID of at least one first user equipment. The device reselects the precoding matrix indication PMI, which is used to indicate the index of the codebook set, so that the first user equipment precodes the data to be transmitted according to the codebook set indicated by the PMI, and then Cause the first user equipment to transmit the encoded data, including: The collaboration management device reselects the PMI for the first user equipment in the preset codebook set according to the first status information and the user ID of at least one first user equipment; The cooperation management device sends at least one user ID of the first user equipment and the selected PMI to at least one of the base stations, so that the base station sends the selected PMI according to the user ID of the first user equipment. The selected PMI is sent to the first user equipment, so that the first user equipment precodes the data to be transmitted according to the codebook set indicated by the PMI, so that the first user equipment Emit the encoded data. 6. An uplink coordinated transmission method, characterized in that the coordinated cell set contains at least one user equipment, and the method includes: The base station obtains the user ID and resource scheduling information of the user equipment in the coordinated cell set, and the resource scheduling information includes the time-frequency resources allocated by the base station to the user equipment; The base station sends the user ID of the user equipment and the resource scheduling information to the cooperation management device, so that the cooperation management device determines the resource scheduling information according to the resource scheduling information. I. The user ID of at least one first user equipment in the coordinated cell set. The first user equipment is a user equipment that occupies the same time-frequency resources as other user equipment in the coordinated cell set, so that the cooperation management device can The user ID of the first user equipment is used to reselect the PMI for the first user equipment in the preset codebook set, and the PMI is used to indicate the index of the codebook set; The base station receives the user ID of at least one first user equipment from the cooperation management device and the PMI reselected by the cooperation management device for the first user equipment; The base station sends the PMI reselected by the cooperation management device for the first user equipment to the first user equipment according to the user ID of the first user equipment, so that the first user equipment can The codebook indicated by the PMI precodes the data to be transmitted, thereby causing the first user equipment to transmit the coded data. 7. The uplink coordinated transmission method according to claim 6, wherein the coordinated cell set includes: at least two first sectors; Wherein, the first sector is at least one sector in the cell where the base station is located, with a path loss less than a preset threshold, and the first sector is within the coverage of the cell where the base station is located. 8. The uplink cooperative transmission method according to claim 6, characterized in that the base station obtains the user identity ID and resource scheduling information of the user equipment in the coordinated cell set, including: The base station obtains first status information, where the first status information includes: channel status information and service status information of the user equipment in the coordinated cell set; The base station schedules the user equipment according to the channel status information and the service status information, allocates time-frequency resources to the user equipment, and generates the resource scheduling information, where the resource scheduling information includes the The time-frequency resources allocated to the user equipment; the base station determines the user ID of the user equipment in the coordinated cell set, and the user equipment is within the coverage range. 9. The uplink coordinated transmission method according to claim 8, wherein the base station obtains the first status information, including: The base station performs channel estimation on the user equipment in the coordinated cell set and obtains the first status information, where the first status information includes: the channel status information and the service status information; Wherein, the channel state information includes: the PMI of the user equipment in the serving cell of the user equipment, the signal to interference and noise ratio SINR of the user equipment, and the interference noise power of the user equipment, and the user equipment The interference noise power includes the interference noise power of the user equipment in the cell where at least one of the base stations in the coordinated cell set is located; the business status information includes the current traffic volume of the user equipment. 10. The uplink coordinated transmission method according to claim 8 or 9, characterized in that, after the base station obtains the first status information, the method further includes: The base station sends the first status information to the collaboration management device, so that the collaboration management device, based on the first status information and at least one user ID of the first user equipment, sets the preset code In this set, the PMI is reselected for the first user equipment respectively. 1 1. A collaborative management device, characterized in that the collaborative cell collection contains at least one user equipment, and the collaborative management device includes: An acquisition unit configured to acquire, through at least one base station, the user identity ID and resource scheduling information of the user equipment in the coordinated cell set, where the resource scheduling information includes the time-frequency resources allocated by the base station to the user equipment; Determining unit, configured to determine the user ID of at least one first user equipment in the coordinated cell set according to the resource scheduling information obtained by the obtaining unit, and the first user equipment is occupied by other user equipment in the coordinated cell set. User equipment with the same time and frequency resources; A selection unit configured to reselect a precoding matrix indication PMI for the first user equipment in the preset codebook set according to the user ID of at least one first user equipment determined by the determination unit, and the PMI An index used to indicate the codebook set, so that the first user equipment precodes the data to be transmitted according to the codebook indicated by the PMI, and then causes the first user equipment to transmit the encoded data . 12. The collaboration management device according to claim 11, characterized in that: The cooperative cell set includes: at least two first sectors; Wherein, the first sector is at least one sector in the cell where the base station is located, in which the path loss is less than a preset threshold. 13. The cooperation management device according to claim 11 or 12, characterized in that, the obtaining unit is further configured to receive the user ID and the user equipment in the first sector of at least one of the base stations. The resource scheduling information; Wherein, the first sector is within the coverage of the cell where the base station is located. 14. The collaboration management device according to any one of claims 11 to 13, further comprising: The receiving unit is configured to receive the PMI from the base station before the selection unit reselects the precoding matrix indication PMI for the first user equipment in the preset codebook set according to the user ID of the first user equipment. First status information, the first status information includes: channel status information and service status information of the user equipment in the first sector; Wherein, the channel state information includes: the signal to interference and noise ratio SINR of the user equipment and the interference noise power of the user equipment, and the interference noise power of the user equipment includes at least one of the user equipment in the coordinated cell set. The interference noise power of the cell where the base station is located; the business status information includes the current traffic volume of the user equipment. 15. The collaboration management device according to claim 14, characterized in that the selection unit includes: A selection module configured to reselect the PMI for the first user equipment in the preset codebook set according to the first status information and the user ID of at least one of the first user equipment; A sending module, configured to send at least one user ID of the first user equipment and the PMI selected by the selection module to at least one of the base stations, so that the base station can Send the selected PMI to the first user equipment, so that the first user equipment precodes the data to be transmitted according to the codebook set indicated by the PMI, so that the The first user equipment transmits the encoded data. 16. A base station, characterized in that the coordinated cell set contains at least one user equipment, and the base station includes: An acquisition unit, configured to acquire the user ID and resource scheduling information of the user equipment in the coordinated cell set, where the resource scheduling information includes the time-frequency resources allocated by the base station to the user equipment; A sending unit, configured to send the user ID of the user equipment and the resource scheduling information obtained by the obtaining unit to a cooperation management device, so that the cooperation management device determines at least one of the cooperative cells in the concentration according to the resource scheduling information. A user ID of a first user equipment, which is a user equipment that occupies the same time-frequency resources as other user equipments in the cooperative cell set, so that the cooperation management device can The user ID of the device, re-selecting PMI for the first user device in the preset codebook set, the PMI is used to indicate the index of the codebook set; a receiving unit, used to receive data from the collaboration management device The user ID of at least one of the first user equipment and the PMI reselected by the collaboration management device for the first user equipment; The sending unit is further configured to send the PMI reselected by the collaboration management device for the first user equipment to the first user equipment according to the user ID of the first user equipment received by the receiving unit. , so that the first user equipment precodes the data to be transmitted according to the codebook indicated by the PMI, and then causes the first user equipment to transmit the encoded data. 17. The base station according to claim 16, wherein the coordinated cell set includes: at least two first sectors; Wherein, the first sector is at least one sector in the cell where the base station is located, with a path loss less than a preset threshold, and the first sector is within the coverage of the cell where the base station is located. 18. The base station according to claim 16, characterized in that the acquisition unit includes: Obtaining module, configured for the base station to obtain first status information, where the first status information includes: channel status information and service status of the user equipment in the coordinated cell set information; An allocation module, configured to schedule the user equipment according to the channel status information and the service status information obtained by the acquisition module, allocate time-frequency resources to the user equipment, and generate the resource scheduling information, the resources The scheduling information includes the time-frequency resources allocated by the base station to the user equipment; Determining module, configured to determine the users of the user equipment in the coordinated cell set ID , the user equipment is within the coverage range. 19. The base station according to claim 18, characterized in that the acquisition module is further configured to perform channel estimation on the user equipment in the coordinated cell set, and acquire the first status information, and the first The status information includes: the channel status information and the service status information; Wherein, the channel state information includes: the PMI of the user equipment in the serving cell of the user equipment, the signal to interference and noise ratio SINR of the user equipment, and the interference noise power of the user equipment, and the user equipment The interference noise power includes the interference noise power of the user equipment in the cell where at least one of the base stations in the coordinated cell set is located; the business status information includes the current traffic volume of the user equipment. 20. The base station according to claim 18 or 19, characterized in that, The sending unit is also configured to send the first status information to the collaboration management device after the acquisition unit acquires the first status information, so that the collaboration management device can perform the operation according to the first status information. and the user ID of at least one first user equipment, respectively reselecting the PMI for the first user equipment in the preset codebook set. 21. A collaborative management device, characterized in that the collaborative cell set contains at least one user equipment, and the collaborative management device includes: A processor configured to obtain, through at least one base station, the user identity ID and resource scheduling information of the user equipment in the coordinated cell set, where the resource scheduling information includes the time-frequency resources allocated by the base station to the user equipment; according to the The resource scheduling information determines the user ID of at least one first user equipment in the coordinated cell set, and the first user equipment is a user equipment that occupies the same time-frequency resources as other user equipment in the coordinated cell set; The user ID of the first user equipment, in the default codebook set respectively reselects the precoding matrix indication PMI for the first user equipment. The PMI is used to indicate the index of the codebook set, so that the first user equipment treats the codebook according to the codebook indicated by the PMI. The transmitted data is precoded, so that the first user equipment transmits the coded data. 22. The cooperative management device according to claim 21, wherein the cooperative cell set includes: at least two first sectors; Wherein, the first sector is a sector in which the path loss is less than a preset threshold in at least one cell in which the base station is located. 23. The collaboration management device according to claim 21 or 22, further comprising: A receiver configured to receive the user ID and the resource scheduling information of the user equipment in the first sector from at least one of the base stations; Wherein, the first sector is within the coverage of the cell where the base station is located. 24. The collaboration management device according to any one of claims 21 to 23, characterized in that, the receiver is further configured to: in the processor, according to the user ID of the first user equipment, in the preset Before reselecting the precoding matrix indication PMI for the first user equipment in the codebook set, receive first status information from the base station, where the first status information includes: the channel of the user equipment in the first sector Status information and business status information; Wherein, the channel state information includes: the signal to interference and noise ratio SINR of the user equipment and the interference noise power of the user equipment, and the interference noise power of the user equipment includes at least one of the user equipment in the coordinated cell set. The interference noise power of the cell where the base station is located; the business status information includes the current traffic volume of the user equipment. 25. The collaboration management device according to claim 24, characterized in that, the processor is further configured to perform the processing according to the first status information received by the receiver and the user ID of at least one of the first user equipment. , reselect the PMI for the first user equipment in the preset codebook set; The collaborative management device also includes: A transmitter configured to send the user ID of at least one first user equipment and the selected PMI determined by the processor to at least one base station, so that the base station can The user ID sends the selected PMI to the first user equipment, so that the first user equipment precodes the data to be transmitted according to the codebook set indicated by the PMI, so that The first user equipment transmits the encoded data. 26. A base station, characterized in that the coordinated cell set contains at least one user equipment, and the base station includes: A processor, configured to obtain the user ID and resource scheduling information of the user equipment in the coordinated cell set, where the resource scheduling information includes the time-frequency resources allocated by the base station to the user equipment; A transmitter configured to send the user ID of the user equipment and the resource scheduling information obtained by the processor to a cooperation management device, so that the cooperation management device determines at least one of the cooperative cells in the concentration according to the resource scheduling information. A user ID of a first user equipment, which is a user equipment that occupies the same time-frequency resources as other user equipments in the cooperative cell set, so that the cooperation management device can The user ID of the device, reselects PMI for the first user device in the preset codebook set, and the PMI is used to indicate the index of the codebook set; A receiver configured to receive a user ID of at least one first user equipment from the collaboration management device and the PMI reselected by the collaboration management device for the first user equipment; The sender is configured to send the PMI reselected by the collaboration management device for the first user equipment to the first user equipment according to the user ID of the first user equipment received by the receiver, So that the first user equipment can precode the data to be transmitted according to the codebook indicated by the PMI, and then the first user equipment can transmit the coded data. 27. The base station according to claim 26, wherein the coordinated cell set includes: at least two first sectors; Wherein, the first sector is the path loss in at least one cell where the base station is located. Sectors smaller than the preset threshold, the first sector is within the coverage of the cell where the base station is located. 28. The base station according to claim 26, wherein the processor is further configured to obtain first status information, and the first status information includes: the channel status of the user equipment in the coordinated cell set information and service status information; schedule the user equipment according to the channel status information and the service status information, allocate time-frequency resources to the user equipment, and generate the resource scheduling information, where the resource scheduling information includes the time-frequency resources allocated by the base station to the user equipment; determining the user ID of the user equipment in the coordinated cell set, and the user equipment is within the coverage range. 29. The base station according to claim 28, wherein the processor is further configured to perform channel estimation on the user equipment in the coordinated cell set and obtain the first status information, and the first The status information includes: the channel status information and the service status information; Wherein, the channel state information includes: the PMI of the user equipment in the serving cell of the user equipment, the signal to interference and noise ratio SINR of the user equipment, and the interference noise power of the user equipment, and the user equipment The interference noise power includes the interference noise power of the user equipment in the cell where at least one of the base stations in the coordinated cell set is located; the business status information includes the current traffic volume of the user equipment. 30. The base station according to claim 28 or 29, characterized in that, the transmitter is further configured to send the first status information to the cooperation after the processor obtains the first status information. Management equipment, so that the collaboration management equipment reselects the first user equipment in the preset codebook set according to the first status information and at least one user ID of the first user equipment. Describe PMI.