WO2013075315A1 - 信号发送方法和基站设备 - Google Patents

信号发送方法和基站设备 Download PDF

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Publication number
WO2013075315A1
WO2013075315A1 PCT/CN2011/082863 CN2011082863W WO2013075315A1 WO 2013075315 A1 WO2013075315 A1 WO 2013075315A1 CN 2011082863 W CN2011082863 W CN 2011082863W WO 2013075315 A1 WO2013075315 A1 WO 2013075315A1
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WO
WIPO (PCT)
Prior art keywords
time domain
user equipment
processing unit
domain signal
baseband processing
Prior art date
Application number
PCT/CN2011/082863
Other languages
English (en)
French (fr)
Inventor
黄颖华
邢峰
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP11870171.3A priority Critical patent/EP2613606B1/en
Priority to CN201180003143.2A priority patent/CN103229552B/zh
Priority to PCT/CN2011/082863 priority patent/WO2013075315A1/zh
Priority to EP18168880.5A priority patent/EP3442153B1/en
Priority to US13/774,589 priority patent/US9048886B2/en
Publication of WO2013075315A1 publication Critical patent/WO2013075315A1/zh
Priority to US14/704,439 priority patent/US9537627B2/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
    • H04L5/0035—Resource allocation in a cooperative multipoint environment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022—Site diversity; Macro-diversity
    • H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA

Definitions

  • the present invention relates to communications technologies, and in particular, to a signal transmitting method and a base station device. Background technique
  • CoMP Coordinated Multi-point Transmission/Reception
  • CoMP can be divided into downlink CoMP and uplink CoMP.
  • Downlink CoMP refers to multiple cells directly or indirectly participating in downlink data transmission of the same UE.
  • Uplink CoMP refers to multiple cells simultaneously receiving uplink data of the same UE, and processing through certain technologies.
  • Downstream CoMP is divided into joint processing and coordinated scheduling. Under the joint processing mode, it can be further divided into: joint transmission and dynamic cell selection.
  • the joint transmission means that multiple cells simultaneously transmit data for one UE on a Physical Downlink Shared Channel (hereinafter referred to as PDSCH) to improve the quality of the received signal of the UE and/or eliminate interference from other UEs;
  • Dynamic cell selection means that only one cell transmits data for the UE at a time, and the cell can be dynamically selected in the CoMP collaboration set.
  • the coordinated scheduling mode only the serving cell schedules and transmits the UE, and coordinates the time, frequency, power, and space of each small interval to avoid mutual interference between different UEs.
  • the present invention provides a signal transmitting method and a base station device to implement CoMP data exchange in an LTE-A system.
  • An aspect of the present invention provides a signal transmission method, which is applied to a base station device including a time domain switching module and at least one baseband processing unit, wherein the time domain switching module is respectively connected to the at least one baseband processing unit, and the method includes :
  • the baseband processing unit corresponding to the serving cell of the first user equipment in the at least one baseband processing unit performs time-frequency conversion and demapping on the first time domain signal and the second time domain signal to obtain the first A frequency domain signal of the user equipment in the serving cell of the first user equipment and the at least one coordinated cell.
  • a base station device including: a time domain switching module and at least one baseband processing unit; the time domain switching module is respectively connected to the at least one baseband processing unit; and the time domain switching module is configured to: Receiving, by the first user equipment, the first time domain signal sent by the radio frequency channel of the serving cell of the first user equipment, and receiving, by the first user equipment, the radio frequency channel of the at least one coordinated cell of the first user equipment And transmitting, by the second time domain signal, the first time domain signal and the second time domain signal to a baseband processing unit corresponding to the serving cell of the first user equipment in the at least one baseband processing unit;
  • a baseband processing unit corresponding to the serving cell of the first user equipment in the at least one baseband processing unit, configured to receive the first time domain signal and the second time domain signal sent by the time domain switching module And performing time-frequency conversion and demapping on the first time domain signal and the second time domain signal to obtain a frequency domain signal of the first user equipment in a serving cell of the first user equipment and at least one coordinated cell.
  • the time domain switching module receives the first time domain signal sent by the first user equipment through the radio frequency channel of the serving cell of the first user equipment, and the radio frequency of the at least one coordinated cell of the first user equipment. After the second time domain signal sent by the channel, the first time domain signal and the second time domain signal are sent to the baseband corresponding to the serving cell of the first user equipment in the at least one baseband processing unit connected to the time domain switching module.
  • a processing unit configured to: the baseband processing unit corresponding to the serving cell of the first user equipment in the at least one baseband processing unit
  • the time domain signal and the second time domain signal are time-frequency converted and demapped to obtain a frequency domain signal of the first user equipment in the serving cell of the first user equipment and the at least one coordinated cell.
  • FIG. 1 is a flow chart of an embodiment of a signal transmitting method according to the present invention.
  • FIG. 2 is a schematic diagram of an embodiment of an application scenario of the present invention.
  • FIG. 3 is a flow chart of another embodiment of a signal transmitting method according to the present invention.
  • FIG. 4 is a schematic diagram of another embodiment of an application scenario of the present invention.
  • FIG. 5 is a schematic diagram of still another embodiment of an application scenario of the present invention.
  • FIG. 6 is a flowchart of still another embodiment of a signal transmitting method according to the present invention.
  • FIG. 7 is a schematic diagram of still another embodiment of an application scenario of the present invention.
  • FIG. 8 is a schematic structural diagram of an embodiment of a base station device according to the present invention.
  • FIG. 9 is a schematic structural diagram of another embodiment of a base station device according to the present invention.
  • FIG. 10 is a schematic structural diagram of still another embodiment of a base station device according to the present invention.
  • FIG. 11 is a schematic structural diagram of still another embodiment of a base station device according to the present invention.
  • 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.
  • the embodiments are a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
  • FIG. 1 is a flowchart of an embodiment of a signal sending method according to the present invention.
  • the letter provided in this embodiment The number transmission method can be applied to a base station device including a time domain switching module and at least one baseband processing unit, and the time domain switching module is respectively connected to the at least one baseband processing unit.
  • the signal sending method may include:
  • Step 101 The time domain switching module receives a first time domain signal sent by the first user equipment by using a radio channel of the serving cell of the user equipment of the first user equipment, and receiving, by the first user equipment, at least one of the first user equipment.
  • At least two cells cooperatively participate in transmitting or receiving data to the user equipment.
  • the at least two cells are mutually cooperative cells.
  • For the first user equipment at least one of the at least two cells except the serving cell of the first user equipment is at least one coordinated cell of the first user equipment.
  • Step 102 The time domain switching module sends the first time domain signal and the second time domain signal to a baseband processing unit corresponding to a serving cell of the first user equipment in the at least one baseband processing unit, so that the at least one baseband processing
  • the baseband processing unit corresponding to the serving cell of the first user equipment performs time-frequency conversion and demapping on the first time domain signal and the second time domain signal to obtain a serving cell of the first user equipment in the first user equipment.
  • a frequency domain signal of at least one coordinated cell is a frequency domain signal of at least one coordinated cell.
  • the time domain switching module may send the first time domain signal and the second time domain signal to the baseband processing unit corresponding to the serving cell of the first user equipment according to the pre-configured cooperation relationship.
  • the pre-configured collaboration relationship may be configured by a higher layer (for example, a base station controller) to the time domain switching module in the base station device.
  • the pre-configured collaboration relationship may be that the first user equipment passes the first The first time domain signal sent by the radio channel of the serving cell of the user equipment and the second time domain signal sent by the first user equipment by using the radio frequency channel of the at least one coordinated cell of the first user equipment are sent to the serving cell of the first user equipment.
  • the signal transmission relationship of the corresponding baseband processing unit may be configured by a higher layer (for example, a base station controller) to the time domain switching module in the base station device.
  • the pre-configured collaboration relationship may be that the first user equipment passes the first The first time domain signal sent by the radio channel of the serving cell of the user equipment and the second time domain signal sent by the first
  • the time domain switching module receives the first time domain signal sent by the first user equipment by using the radio channel of the serving cell of the first user equipment, and the radio frequency channel of the at least one coordinated cell of the first user equipment. Transmitting the first time domain signal and the second time domain signal to the baseband processing corresponding to the serving cell of the first user equipment in the at least one baseband processing unit connected to the time domain switching module Unit, so that at least one of the above
  • the baseband processing unit corresponding to the serving cell of the first user equipment in the processing unit performs time-frequency conversion and demapping on the first time domain signal and the second time domain signal to obtain the first user equipment at the first user equipment.
  • a frequency domain signal of the serving cell and the at least one coordinated cell is provided.
  • FIG. 2 is a schematic diagram of an embodiment of the application scenario of the present invention.
  • cell 1 (Cell) and cell 2 (Cell2) are mutually coordinated cells
  • the serving cell of UE1 is cell 1
  • the cooperating cell is cell 2.
  • the base station device includes a time domain switching module and a baseband processing unit corresponding to the cell 1, wherein the time domain switching module is connected to the baseband processing unit corresponding to the cell 1.
  • FIG. 3 is a flowchart of another embodiment of a signaling method according to the present invention. This embodiment is described by taking the CoMP process of UE1 in FIG. 2 as an example.
  • the signal sending method may include:
  • Step 301 The time domain switching module receives the first time domain signal sent by the UE1 through the radio frequency channel of the cell 1 and the second time domain signal sent by the UE1 through the radio frequency channel of the cell 2.
  • Step 302 The time domain switching module sends the first time domain signal and the second time domain signal to the baseband processing unit corresponding to the cell 1.
  • the time domain switching module may send the first time domain signal and the second time domain signal to the baseband processing unit corresponding to the cell 1 according to a pre-configured cooperation relationship.
  • the pre-configured cooperative relationship may be configured by a higher layer (for example, a base station controller) to the time domain switching module in the base station device.
  • the pre-configured cooperative relationship may be a radio frequency that uses the UE1 to serve the cell in the UE1.
  • the first time domain signal sent by the channel and the second time domain signal sent by the UE1 through the radio frequency channel of the at least one coordinated cell of the UE1 are sent to the signal transmission relationship of the baseband processing unit corresponding to the cell 1.
  • Step 303 The baseband processing unit corresponding to the cell 1 performs time-frequency conversion and demapping on the first time domain signal and the second time domain signal to obtain a frequency domain signal of the UE1 in the cell 1 and the cell 2.
  • Step 304 The baseband processing unit corresponding to the cell 1 performs joint processing on the frequency domain signals of the cell 1 and the cell 2 of the UE1.
  • the baseband processing unit corresponding to the cell 1 may first be in the cell 1 and the cell 2 for the UE1.
  • the frequency domain signal is subjected to multiple input multiple output (MIMO) decoding equalization processing, and then inverse discrete Fourier transform (hereinafter referred to as IDFT) / demodulation / deinterleaving / Hybrid Automatic Repeat Request (Hereafter referred to as: HARQ) Merging/Decoding/Cyclic Redundancy Check (CRC).
  • MIMO multiple input multiple output
  • IDFT inverse discrete Fourier transform
  • HARQ Hybrid Automatic Repeat Request
  • CRC Merging/Decoding/Cyclic Redundancy Check
  • composition of the time domain switching module and the physical location of at least one baseband processing unit in the embodiment shown in FIG. 1 to FIG. 3 of the present invention may have different implementation manners.
  • the time domain switching module and the at least one baseband processing unit may be located in the same baseband board of the base station device.
  • FIG. 4 is a schematic diagram of another embodiment of the application scenario of the present invention.
  • cell 1 and cell 2 are mutually cooperative cells, the serving cell of UE1 is cell 1, and the cooperative cell is cell 2.
  • the base station device includes a time domain switching module and a baseband processing unit corresponding to the cell 1, wherein the time domain switching module is a time domain switching chip, and the time domain switching chip is connected to the baseband processing unit corresponding to the cell 1, and is located at Inside the same baseband board.
  • the time domain switching module includes at least two time domain switching chips connected to each other, and the at least two time domain switching chips are respectively located in different baseband boards of the base station device; Receiving, by the first user equipment, a first time domain signal sent by the radio frequency channel of the serving cell of the first user equipment, and receiving a second time that the first user equipment sends by using the radio frequency channel of the at least one coordinated cell of the first user equipment
  • the domain signal may be: at least one time domain switching chip of the at least two time domain switching chips except the first time domain switching chip receives the first user equipment and is sent by using the radio frequency channel of the at least one coordinated cell of the first user equipment.
  • the second time domain signal is sent to the first time domain switching chip; wherein, the first time domain switching chip of the at least two time domain switching chips and the serving cell of the first user equipment
  • the corresponding baseband processing unit is located on the same baseband board; the first time domain switching chip receives the first user equipment
  • the first time domain signal through the first cell serving the user equipment transmits a radio frequency channel, and receiving at least the second time domain signal a time domain transmission switching chip.
  • the time domain switching module sends the first time domain signal and the second time domain signal to the baseband corresponding to the serving cell of the first user equipment in the at least one baseband processing unit.
  • the processing unit may be: the first time domain switching chip sends the first time domain signal and the second time domain signal to a baseband processing unit corresponding to the serving cell of the first user equipment.
  • FIG. 5 is a schematic diagram of still another embodiment of an application scenario of the present invention.
  • a cell 1 and a cell 2 are mutually coordinated cells
  • a serving cell of UE1 is a cell 1
  • a coordinated cell is a cell 2.
  • the base station device includes a time domain switching module and a baseband processing unit corresponding to the cell 1, wherein the time domain switching module is composed of two time domain switching chips connected to each other.
  • the first time domain switching chip of the two time domain switching chips and the baseband processing unit corresponding to the cell 1 are located on the same baseband board (for example, the first baseband board in FIG. 5), and the first of the two time domain switching chips.
  • the second time domain switch chip is connected to the first time domain switch chip, and is located on a different baseband board than the first time domain switch chip. In FIG. 5, the second time domain switch chip is located on the second baseband board.
  • FIG. 6 is a flowchart of still another embodiment of a signal sending method according to the present invention. This embodiment describes a CoMP process of UE1 in the scenario shown in FIG. 5.
  • the signal sending method may include:
  • Step 601 The second time domain switching chip receives the second time domain signal that is sent by the UE1 through the radio frequency channel of the cell 2.
  • Step 602 The second time domain switching chip sends the second time domain signal to the first time domain switching chip.
  • Step 603 The first time domain switching chip receives the first time domain signal sent by the UE1 through the radio frequency channel of the cell 1, and receives the second time domain signal sent by the second time domain switching chip.
  • the step of the first time domain switch chip receiving the first time domain signal sent by the UE1 through the radio frequency channel of the cell 1 and the step 601 may be performed in sequence, or may be performed in parallel, which is not limited in this embodiment.
  • Step 604 The first time domain switching chip sends the first time domain signal and the second time domain signal to the baseband processing unit corresponding to the cell 1.
  • Step 605 The baseband processing unit corresponding to the cell 1 performs time-frequency conversion and demapping on the first time domain signal and the second time domain signal to obtain a frequency domain signal of the UE1 in the cell 1 and the cell 2.
  • Step 606 The baseband processing unit corresponding to the cell 1 performs joint processing on the frequency domain signals of the cell 1 and the cell 2 of the UE1.
  • the baseband processing unit corresponding to the cell 1 may perform MIMO decoding and equalization processing on the frequency domain signals of the UE1 in the cell 1 and the cell 2, and then perform IDFT/demodulation/deinterleaving/HARQ. Processing such as merge/decode/CRC.
  • the baseband processing unit corresponding to the serving cell of the first user equipment in the at least one baseband processing unit is located in the first baseband board in the base station device; and the time domain switching module is in the base station device.
  • Independent setting wherein, the independent setting means that the time domain switching module is not disposed on any baseband device in the base station device.
  • the time domain switching module may send the foregoing first time domain signal and the second time domain signal to the baseband processing unit of the at least one baseband processing unit corresponding to the serving cell of the first user equipment, where:
  • the time domain switching module transmits the first time domain signal and the second time domain signal to the baseband processing unit corresponding to the serving cell of the first user equipment located in the first baseband board.
  • Figure 7 is a schematic diagram of still another embodiment of the application scenario of the present invention.
  • cell 1 and cell 2 are mutually cooperative cells
  • the serving cell of UE1 is cell 1
  • the coordinated cell is cell 2.
  • the base station device includes a time domain switching module and a baseband processing unit corresponding to the cell 1, wherein the time domain switching module may be a time domain switching chip, and the time domain switching chip is independently set in the base station device;
  • the corresponding baseband processing unit is located in the first baseband board in the base station apparatus.
  • the time domain switching chip can According to the pre-configured cooperation relationship, it is determined that the first time domain signal and the second time domain signal need to be sent to the baseband processing unit corresponding to the cell 1. Then, the time domain switching chip can determine that the baseband processing unit corresponding to the cell 1 is located on the first baseband board according to the position distribution relationship between the baseband processing unit and the baseband board stored in the time domain switching chip.
  • the time domain switching chip transmits the first time domain signal and the second time domain signal to the baseband processing unit corresponding to the cell 1 located in the first baseband board.
  • the baseband processing unit corresponding to the cell 1 receives the first time domain signal and the second time domain signal, refer to the description of steps 303 to 304 of the embodiment shown in FIG. 3 of the present invention, and details are not described herein again.
  • the pre-configured collaboration relationship may be configured by the upper layer (for example, a base station controller) to the time domain switch chip.
  • the pre-configured cooperation relationship may be the first time domain that sends the UE1 through the radio channel of the UE1 serving cell.
  • the signal and the second time domain signal sent by the UE1 through the radio frequency channel of the at least one coordinated cell of the UE1 are sent to the signal transmission relationship of the baseband processing unit corresponding to the cell 1.
  • all or part of the steps of implementing the above method embodiments may be completed by using hardware related to program instructions, and the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed.
  • the foregoing steps include the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.
  • FIG. 8 is a schematic structural diagram of an embodiment of a base station device according to the present invention.
  • the base station device in this embodiment can implement the process of the embodiment shown in FIG. 1 of the present invention.
  • the base station device may include: a time domain switching module 81 and at least one baseband processing unit 82; the time domain switching module 81 is respectively connected to at least one baseband processing unit 82; wherein, the time domain switching module 81 is used Receiving, by the first user equipment, the first time domain signal sent by the radio channel of the serving cell of the first user equipment, and receiving the second user equipment, sending the second user equipment by using the radio frequency channel of the at least one coordinated cell of the first user equipment Transmitting the first time domain signal and the second time domain signal to the baseband processing unit corresponding to the serving cell of the first user equipment in the at least one baseband processing unit 82;
  • a baseband processing unit corresponding to the serving cell of the first user equipment in the at least one baseband processing unit 82, configured to receive the first time domain signal and the second time domain signal sent by the time domain switching module 81, to the first time domain signal And performing time-frequency conversion and demapping on the second time domain signal to obtain a frequency domain signal of the first user equipment in the serving cell of the first user equipment and the at least one coordinated cell.
  • the baseband processing unit may be a layer 1 (L1) processing chip.
  • the base station device includes a time domain switching module 81 and a baseband processing unit 82.
  • the one baseband processing unit 82 is a baseband processing unit corresponding to the serving cell of the first user equipment.
  • the time domain switching module 81 receives the first time domain signal sent by the first user equipment by using the radio channel of the serving cell of the first user equipment, and the radio frequency of the at least one coordinated cell of the first user equipment. After the second time domain signal sent by the channel, the first time domain signal and the second time domain signal are sent to the at least one baseband processing unit 82 connected to the time domain switching module 81 to correspond to the serving cell of the first user equipment.
  • the baseband processing unit corresponding to the serving cell of the first user equipment in the at least one baseband processing unit 82 performs time-frequency conversion and demapping on the first time domain signal and the second time domain signal to obtain the first A frequency domain signal of a user equipment at a serving cell of the first user equipment and at least one coordinated cell. From The data exchange between the serving cell and the coordinated cell can be implemented in the LTE-A system, thereby effectively reducing the influence of interference and improving the quality of the wireless signal.
  • FIG. 9 is a schematic structural diagram of another embodiment of a base station device according to the present invention. Compared with the base station device shown in FIG. 8, the difference is that, in this embodiment, the time domain switching module 81 and the at least one baseband processing unit 82 are located at the base station. The same baseband board of the device.
  • the base station device includes a time domain switching module 81 and a baseband processing unit 82 as an example.
  • the one baseband processing unit 82 is a baseband processing unit corresponding to the serving cell of the first user equipment.
  • the time domain switching module 81 and the above one baseband processing unit 82 are located in the first baseband board 83 of the base station apparatus.
  • the time domain switching module 81 can be a time domain switching chip.
  • the foregoing base station device can implement data exchange between the serving cell and the coordinated cell in the LTE-A system, thereby effectively reducing the influence of interference and improving the quality of the wireless signal.
  • FIG. 10 is a schematic structural diagram of still another embodiment of a base station device according to the present invention.
  • the time domain switching module may include: at least two times connected to each other.
  • the domain switching chip, the at least two time domain switching chips are respectively located in different baseband boards in the base station device; the baseband processing corresponding to the first time domain switching chip of the at least two time domain switching chips and the serving cell of the first user equipment
  • the unit is located in the same baseband board of the above base station device;
  • At least one time domain switching chip of the at least two time domain switching chips except the first time domain switching chip configured to receive the second user equipment to send the second time through the radio frequency channel of the at least one coordinated cell of the first user equipment a time domain signal, and transmitting the second time domain signal to the first time domain switching chip;
  • a first time domain switching chip configured to receive a first time domain signal sent by the first user equipment by using a radio frequency channel of the serving cell of the first user equipment, and receive a second time domain signal sent by the at least one time domain switching chip, and And transmitting the first time domain signal and the second time domain signal to a baseband processing unit corresponding to the serving cell of the first user equipment.
  • the base station device includes a time domain switching module 81 and a baseband processing unit 82 as an example.
  • the one baseband processing unit 82 is a baseband processing unit corresponding to the serving cell of the first user equipment.
  • the time domain switching module 81 includes two time domain switching chips connected to each other as an example. In FIG. 10, the two time domain switching chips are respectively the first time domain switching.
  • the chip 811 and the second time domain switch chip 812 are replaced.
  • the baseband processing unit 82 corresponding to the serving cell of the first user equipment is located at the first baseband board 84 of the base station device, and the second time domain switching chip 812 is located at the second baseband of the base station device. Inside the board 85.
  • the foregoing base station device can implement data exchange between the serving cell and the coordinated cell in the LTE-A system, thereby effectively reducing the influence of interference and improving the quality of the wireless signal.
  • FIG. 11 is a schematic structural diagram of still another embodiment of a base station device according to the present invention.
  • the service of the at least one baseband processing unit and the first user equipment is The baseband processing unit corresponding to the cell is located in the first baseband board of the base station device; the time domain switching module is independently set in the base station device; wherein the independent setting refers to any baseband board in which the time domain switching module is not disposed in the base station device. on.
  • the time domain switching module is specifically configured to send the first time domain signal and the second time domain signal to a baseband processing unit corresponding to a serving cell of the first user equipment located in the first baseband board.
  • the base station device includes a time domain switching module 81 and a baseband processing unit 82 as an example.
  • the one baseband processing unit 82 is a baseband processing unit corresponding to the serving cell of the first user equipment, and the baseband is used.
  • Processing unit 82 is located within first baseband board 86 in the base station equipment.
  • the time domain switching module 81 can be a time domain switching chip.
  • the foregoing base station device can implement data exchange between the serving cell and the coordinated cell in the LTE-A system, thereby effectively reducing the influence of interference and improving the quality of the wireless signal.
  • 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 functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present invention which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including a number of instructions to make a computer device (which can be a personal computer, The server, or network device, etc.) performs all or part of the steps of the method described in various embodiments of the present invention.
  • the foregoing storage medium includes: a USB flash drive, a mobile hard disk, a read-only memory (English is Read-Only Memory, abbreviated as ROM in English), a random access memory (English is a Random Access Memory, abbreviated as RAM), a disk or A variety of media such as optical discs that can store program code.

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Abstract

本发明提供一种信号发送方法和基站设备，所述信号发送方法应用于包括时域交换模块和至少一个基带处理单元的基站设备中，所述时域交换模块分别与所述至少一个基带处理单元连接，所述方法包括：所述时域交换模块接收第一用户设备通过所述第一用户设备的服务小区的射频通道发送的第一时域信号，以及接收所述第一用户设备通过所述第一用户设备的至少一个协作小区的射频通道发送的第二时域信号；所述时域交换模块将所述第一时域信号和所述第二时域信号发送给所述至少一个基带处理单元中与所述第一用户设备的服务小区对应的基带处理单元。本发明可以在LTE-A系统中实现CoMP数据交换。

Description

信号发送方法和基站设备 技术领域 本发明涉及通信技术， 尤其涉及一种信号发送方法和基站设备。 背景技术
高级长期演进（ Long Term Evolution-Advanced; 以下简称： LTE-A ) 系 统中 可以通过协作多 点传输 /接收 （ Coordinated Multi-point Transmission/Reception; 以下简称： CoMP ) 技术来增加高数据速率的覆 盖， 提高小区边缘的吞吐量和 /或增加系统吞吐量。 所谓 CoMP是指地理 位置上分离的多个传输点（可以理解成不同小区）协同参与对一个用户设 备（ User Equipment; 以下简称： UE )传输或接收数据。
CoMP可分为下行 CoMP和上行 CoMP, 下行 CoMP指多个小区直接 或间接参与同一个 UE的下行数据发送； 上行 CoMP指多个小区同时接收 同一个 UE的上行数据， 并通过一定的技术合并处理。 下行 CoMP分为联 合处理和协调调度。 联合处理方式下， 又可以分为： 联合传输和动态小区 选择。联合传输是指多个小区在物理下行链路共享信道（ Physical Downlink Shared Channel; 以下简称： PDSCH ) 上同时为一个 UE传输数据， 以提 高 UE接收信号的质量和 /或消除来自其他 UE的干扰； 动态小区选择是指 每个时刻只有一个小区为 UE发送数据， 该小区可以在 CoMP协作集中动 态选择。 协调调度方式下， 只有服务小区对 UE进行调度和传输， 通过各 小区间的时间、 频率、 功率和空间等资源的协调， 避免不同 UE之间的相 互干扰。
在实现本发明过程中， 发明人发现： 虽然 LTE-A系统支持 CoMP , 但 现有技术无法实现 LTE-A系统中服务小区和协作小区之间的数据交换。 发明内容 本发明提供一种信号发送方法和基站设备， 以在 LTE-A 系统中实现 CoMP数据交换。 本发明一方面提供一种信号发送方法， 应用于包括时域交换模块和至 少一个基带处理单元的基站设备中， 所述时域交换模块分别与所述至少一 个基带处理单元连接， 所述方法包括：
所述时域交换模块接收第一用户设备通过所述第一用户设备的服务小 区的射频通道发送的第一时域信号， 以及接收所述第一用户设备通过所述第 一用户设备的至少一个协作小区的射频通道发送的第二时域信号；
所述时域交换模块将所述第一时域信号和所述第二时域信号发送给所述 至少一个基带处理单元中与所述第一用户设备的服务小区对应的基带处理单 元， 以便所述至少一个基带处理单元中与所述第一用户设备的服务小区对应 的基带处理单元对所述第一时域信号和所述第二时域信号进行时频转换和解 映射后获得所述第一用户设备在所述第一用户设备的服务小区和至少一个协 作小区的频域信号。
本发明另一方面提供一种基站设备， 包括： 时域交换模块和至少一个基 带处理单元； 所述时域交换模块分别与所述至少一个基带处理单元连接； 所述时域交换模块， 用于接收第一用户设备通过所述第一用户设备的服 务小区的射频通道发送的第一时域信号， 以及接收所述第一用户设备通过所 述第一用户设备的至少一个协作小区的射频通道发送的第二时域信号； 并将 所述第一时域信号和所述第二时域信号发送给所述至少一个基带处理单元中 与所述第一用户设备的服务小区对应的基带处理单元；
所述至少一个基带处理单元中与所述第一用户设备的服务小区对应的基 带处理单元， 用于接收所述时域交换模块发送的所述第一时域信号和所述第 二时域信号， 对所述第一时域信号和所述第二时域信号进行时频转换和解映 射后获得所述第一用户设备在所述第一用户设备的服务小区和至少一个协作 小区的频域信号。
通过本发明实施例， 时域交换模块接收到第一用户设备通过该第一用 户设备的服务小区的射频通道发送的第一时域信号， 以及通过该第一用户设 备的至少一个协作小区的射频通道发送的第二时域信号之后， 将上述第一时 域信号和上述第二时域信号发送给上述时域交换模块连接的至少一个基带处 理单元中与第一用户设备的服务小区对应的基带处理单元， 以便上述至少一 个基带处理单元中与第一用户设备的服务小区对应的基带处理单元对上述第 一时域信号和上述第二时域信号进行时频转换和解映射后获得第一用户设备 在该第一用户设备的服务小区和至少一个协作小区的频域信号。 从而可以在
LTE-A系统中实现服务小区和协作小区的数据交换， 进而可以有效地减少干 扰的影响， 提升无线信号的质量。 附图说明
实施例或现有技术描述中所需要使用的附图作一简单地介绍， 显而易见 地， 下面描述中的附图是本发明的一些实施例， 对于本领域普通技术人员 来讲， 在不付出创造性劳动性的前提下， 还可以根据这些附图获得其他的 附图。
图 1为本发明信号发送方法一个实施例的流程图；
图 2为本发明应用场景一个实施例的示意图；
图 3为本发明信号发送方法另一个实施例的流程图；
图 4为本发明应用场景另一个实施例的示意图；
图 5为本发明应用场景再一个实施例的示意图；
图 6为本发明信号发送方法再一个实施例的流程图；
图 7为本发明应用场景又一个实施例的示意图；
图 8为本发明基站设备一个实施例的结构示意图；
图 9为本发明基站设备另一个实施例的结构示意图；
图 10为本发明基站设备再一个实施例的结构示意图；
图 11为本发明基站设备又一个实施例的结构示意图。 具体实施方式 为使本发明实施例的目的、 技术方案和优点更加清楚， 下面将结合本 发明实施例中的附图， 对本发明实施例中的技术方案进行清楚、 完整地描 述， 显然， 所描述的实施例是本发明一部分实施例， 而不是全部的实施例。 基于本发明中的实施例， 本领域普通技术人员在没有作出创造性劳动前提 下所获得的所有其他实施例， 都属于本发明保护的范围。
图 1为本发明信号发送方法一个实施例的流程图， 本实施例提供的信 号发送方法可以应用于包括时域交换模块和至少一个基带处理单元的基 站设备中， 上述时域交换模块分别与上述至少一个基带处理单元连接。
如图 1所示， 该信号发送方法可以包括：
步骤 101 , 时域交换模块接收第一用户设备通过该第一用户设备服务 小区用户设备的服务小区的射频通道发送的第一时域信号， 以及接收第一用 户设备通过该第一用户设备至少一个协作小区的射频通道发送的第二时域信 号。
本实施例中，在进行 CoMP时，至少两个小区协同参与对用户设备传输 或接收数据。 上述至少两个小区互为协作小区。 对于第一用户设备来说， 上述至少两个小区中除第一用户设备的服务小区之外的至少一个小区为 第一用户设备的至少一个协作小区。 其他实施例不再赘述。
步骤 102, 时域交换模块将上述第一时域信号和上述第二时域信号发送 给上述至少一个基带处理单元中与第一用户设备的服务小区对应的基带处理 单元， 以便上述至少一个基带处理单元中与第一用户设备的服务小区对应的 基带处理单元对上述第一时域信号和上述第二时域信号进行时频转换和解映 射后获得第一用户设备在该第一用户设备的服务小区和至少一个协作小区的 频域信号。
具体地， 时域交换模块可以根据预先配置的协作关系将上述第一时域信 号和上述第二时域信号发送给与第一用户设备的服务小区对应的基带处理单 元。 本实施例中， 上述预先配置的协作关系可以由高层（例如： 基站控制器） 配置给上述基站设备中的时域交换模块； 上述预先配置的协作关系可以为将 第一用户设备通过该第一用户设备的服务小区的射频通道发送的第一时域 信号和第一用户设备通过该第一用户设备的至少一个协作小区的射频通道 发送的第二时域信号发送给第一用户设备的服务小区对应的基带处理单元的 信号发送关系。
上述实施例中， 时域交换模块接收到第一用户设备通过该第一用户设 备的服务小区的射频通道发送的第一时域信号， 以及通过该第一用户设备的 至少一个协作小区的射频通道发送的第二时域信号之后， 将上述第一时域信 号和上述第二时域信号发送给上述时域交换模块连接的至少一个基带处理单 元中与第一用户设备的服务小区对应的基带处理单元， 以便上述至少一个基 带处理单元中与第一用户设备的服务小区对应的基带处理单元对上述第一时 域信号和上述第二时域信号进行时频转换和解映射后获得第一用户设备在该 第一用户设备的服务小区和至少一个协作小区的频域信号。 从而可以在
LTE-A系统中实现服务小区和协作小区的数据交换， 进而可以有效地减少干 扰的影响， 提升无线信号的质量。
本发明图 1所示实施例提供的方法可以应用在图 2所示场景中， 图 2为 本发明应用场景一个实施例的示意图。
图 2中， 小区 1 ( Celll )和小区 2 ( Cell2 )互为协作小区， UE1的服务 小区为小区 1 , 协作小区为小区 2。 图 2中， 基站设备包括时域交换模块和小 区 1对应的基带处理单元， 其中， 上述时域交换模块与小区 1对应的基带处 理单元连接。
图 3为本发明信号发送方法另一个实施例的流程图， 本实施例以图 2中 UE1的 CoMP过程为例进行说明。
如图 3所示， 该信号发送方法可以包括：
步骤 301 , 时域交换模块接收 UE1通过小区 1的射频通道发送的第一时 域信号和 UE1通过小区 2的射频通道发送的第二时域信号。
步骤 302, 时域交换模块将第一时域信号和第二时域信号发送给小区 1 对应的基带处理单元。
具体地， 上述时域交换模块可以根据预先配置的协作关系将上述第一时 域信号和上述第二时域信号发送给小区 1对应的基带处理单元。
本实施例中， 上述预先配置的协作关系可以由高层（例如： 基站控制器） 配置给上述基站设备中的时域交换模块； 上述预先配置的协作关系可以为将 UE1 通过该 UE1 服务小区的射频通道发送的第一时域信号和 UE1 通过该 UE1至少一个协作小区的射频通道发送的第二时域信号发送给小区 1对应的 基带处理单元的信号发送关系。
步骤 303 , 小区 1对应的基带处理单元对上述第一时域信号和上述第二 时域信号进行时频转换和解映射后获得 UE1在小区 1和小区 2的频域信号。
步骤 304, 小区 1对应的基带处理单元对 UE1在小区 1和小区 2的频域 信号进行联合处理。
举例来说， 小区 1对应的基带处理单元可以先对 UE1在小区 1和小区 2 的频域信号进行多输入多输出 （ Multiple Input Multiple Output; 以下简称： MIMO )译码均衡处理， 再进行离散傅里叶逆变换（ Inverse Discrete Fourier Transform; 以下简称： IDFT ) /解调制 /解交织 /混合自动重传请求（ Hybrid Automatic Repeat Request; 以下简称： HARQ ) 合并 /译码 /循环冗余校验 ( Cyclic Redundancy Check; 以下简称： CRC ) 等处理。
在具体实现时， 本发明图 1〜图 3所示实施例中时域交换模块的组成和至 少一个基带处理单元的物理位置会有不同的实现方式。
本发明一种实现方式中，上述时域交换模块与上述至少一个基带处理单 元可以位于基站设备的同一基带板内， 如图 4所示， 图 4为本发明应用场景 另一个实施例的示意图。
图 4中， 小区 1和小区 2互为协作小区， UE1的服务小区为小区 1 , 协 作小区为小区 2。 图 4中， 基站设备包括时域交换模块和小区 1对应的基带 处理单元， 其中， 上述时域交换模块为时域交换芯片， 上述时域交换芯片与 小区 1对应的基带处理单元连接， 且位于同一基带板内。
图 4所示场景中， UE1的 CoMP过程请参见本发明图 3所示实施例中的 描述， 在此不再赘述。
本发明另一种实现方式中， 上述时域交换模块包括相互连接的至少两 个时域交换芯片， 上述至少两个时域交换芯片分别位于上述基站设备中不 同的基带板； 这样时域交换模块接收第一用户设备通过该第一用户设备的 服务小区的射频通道发送的第一时域信号， 以及接收第一用户设备通过该第 一用户设备的至少一个协作小区的射频通道发送的第二时域信号可以为： 上 述至少两个时域交换芯片中除第一时域交换芯片之外的至少一个时域交换芯 片接收第一用户设备通过第一用户设备的至少一个协作小区的射频通道发送 的第二时域信号， 并将该第二时域信号发送给上述第一时域交换芯片； 其中， 上述至少两个时域交换芯片中的第一时域交换芯片与第一用户设备的服务 小区对应的基带处理单元位于同一基带板； 第一时域交换芯片接收第一用户 设备通过第一用户设备的服务小区的射频通道发送的第一时域信号， 以及接 收上述至少一个时域交换芯片发送的第二时域信号。
本实现方式中， 时域交换模块将上述第一时域信号和上述第二时域信号 发送给上述至少一个基带处理单元中与第一用户设备的服务小区对应的基带 处理单元可以为： 第一时域交换芯片将上述第一时域信号和上述第二时域信 号发送给第一用户设备的服务小区对应的基带处理单元。
图 5为本发明应用场景再一个实施例的示意图， 图 5中， 小区 1和小区 2互为协作小区， UE1的服务小区为小区 1 , 协作小区为小区 2。
图 5中， 基站设备包括时域交换模块和小区 1对应的基带处理单元， 其 中， 上述时域交换模块由相互连接的两个时域交换芯片组成。 上述两个时域 交换芯片中的第一时域交换芯片与小区 1对应的基带处理单元位于同一基带 板（例如： 图 5中的第一基带板） ， 上述两个时域交换芯片中的第二时域交 换芯片与上述第一时域交换芯片连接， 且与第一时域交换芯片位于不同的基 带板， 图 5中第二时域交换芯片位于第二基带板。
图 6为本发明信号发送方法再一个实施例的流程图， 本实施例对图 5所 示场景中 UE1的 CoMP过程进行说明。
如图 6所示， 该信号发送方法可以包括：
步骤 601 , 第二时域交换芯片接收 UE1通过小区 2的射频通道发送的第 二时域信号。
步骤 602, 第二时域交换芯片将上述第二时域信号发送给第一时域交换 芯片。
步骤 603 , 第一时域交换芯片接收 UE1通过小区 1的射频通道发送的第 一时域信号， 以及接收第二时域交换芯片发送的第二时域信号。
其中， 第一时域交换芯片接收 UE1通过小区 1的射频通道发送的第一时 域信号的步骤与步骤 601可以先后执行， 也可以并行执行， 本实施例对此不 作限定。
步骤 604, 第一时域交换芯片将上述第一时域信号和上述第二时域信号 发送给小区 1对应的基带处理单元。
步骤 605, 小区 1对应的基带处理单元对上述第一时域信号和上述第二 时域信号进行时频转换和解映射后获得 UE1在小区 1和小区 2的频域信号。
步骤 606, 小区 1对应的基带处理单元对 UE1在小区 1和小区 2的频域 信号进行联合处理。
举例来说， 小区 1对应的基带处理单元可以先对 UE1在小区 1和小区 2 的频域信号进行 MIMO译码均衡处理， 再进行 IDFT/解调制 /解交织 /HARQ 合并 /译码 /CRC等处理。
本发明再一种实现方式中，上述至少一个基带处理单元中与第一用户设 备的服务小区对应的基带处理单元位于上述基站设备中的第一基带板； 上述 时域交换模块在上述基站设备中独立设置； 其中， 独立设置是指上述时域交 换模块不设置在基站设备中的任一基带板上。 本实现方式中， 时域交换模块 将上述第一时域信号和上述第二时域信号发送给上述至少一个基带处理单元 中与第一用户设备的服务小区对应的基带处理单元可以为：
时域交换模块将上述第一时域信号和上述第二时域信号发送给位于第 一基带板中的与第一用户设备的服务小区对应的基带处理单元。
图 7为本发明应用场景又一个实施例的示意图， 图 7中， 小区 1和小区 2互为协作小区， UE1的服务小区为小区 1 , 协作小区为小区 2。
图 7中， 基站设备包括时域交换模块和小区 1对应的基带处理单元， 其 中， 上述时域交换模块可以为时域交换芯片， 该时域交换芯片在上述基站设 备中独立设置； 上述小区 1对应的基带处理单元位于上述基站设备中的第一 基带板。
图 7所示场景中， 时域交换芯片接收到 UE1通过小区 1的射频通道发 送的第一时域信号和 UE1通过小区 2的射频通道发送的第二时域信号之后， 上述时域交换芯片可以根据预先配置的协作关系， 确定需要将上述第一时域 信号和第二时域信号发送给小区 1对应的基带处理单元。 然后， 上述时域交 换芯片可以根据该时域交换芯片保存的基带处理单元与基带板的位置分布关 系， 确定小区 1对应的基带处理单元位于第一基带板。 最后， 上述时域交换 芯片将上述第一时域信号和第二时域信号发送给位于第一基带板中的小区 1 对应的基带处理单元。 小区 1对应的基带处理单元接收到上述第一时域信号 和上述第二时域信号后的操作请参见本发明图 3 所示实施例步骤 303〜步骤 304的描述， 在此不再赘述。
其中， 上述预先配置的协作关系可以由高层（例如： 基站控制器） 配置 给上述时域交换芯片； 上述预先配置的协作关系可以为将 UE1 通过该 UE1 服务小区的射频通道发送的第一时域信号和 UE1通过该 UE1至少一个协作小 区的射频通道发送的第二时域信号发送给小区 1对应的基带处理单元的信号 发送关系。 本领域普通技术人员可以理解： 实现上述方法实施例的全部或部分步骤 可以通过程序指令相关的硬件来完成， 前述的程序可以存储于一计算机可读 取存储介质中， 该程序在执行时， 执行包括上述方法实施例的步骤； 而前述 的存储介质包括： ROM、 RAM, 磁碟或者光盘等各种可以存储程序代码的介 质。
图 8为本发明基站设备一个实施例的结构示意图， 本实施例中的基站设 备可以实现本发明图 1所示实施例的流程。
如图 8所示， 该基站设备可以包括： 时域交换模块 81和至少一个基带处 理单元 82; 上述时域交换模块 81分别与至少一个基带处理单元 82连接； 其中， 时域交换模块 81 , 用于接收第一用户设备通过该第一用户设备的 服务小区的射频通道发送的第一时域信号， 以及接收第一用户设备通过该第 一用户设备的至少一个协作小区的射频通道发送的第二时域信号； 并将上述 第一时域信号和上述第二时域信号发送给上述至少一个基带处理单元 82 中 与第一用户设备的服务小区对应的基带处理单元；
至少一个基带处理单元 82 中与第一用户设备的服务小区对应的基带处 理单元， 用于接收时域交换模块 81发送的第一时域信号和第二时域信号， 对 上述第一时域信号和上述第二时域信号进行时频转换和解映射后获得第一用 户设备在该第一用户设备的服务小区和至少一个协作小区的频域信号。
本实施例中， 基带处理单元可以为层 1 ( L1 )处理芯片。
图 8以基站设备包括一个时域交换模块 81和一个基带处理单元 82为例 示出， 这时， 上述一个基带处理单元 82即为与第一用户设备的服务小区对应 的基带处理单元。
上述实施例中， 时域交换模块 81接收到第一用户设备通过该第一用户 设备的服务小区的射频通道发送的第一时域信号， 以及通过该第一用户设备 的至少一个协作小区的射频通道发送的第二时域信号之后， 将上述第一时域 信号和上述第二时域信号发送给上述时域交换模块 81 连接的至少一个基带 处理单元 82中与第一用户设备的服务小区对应的基带处理单元，以便上述至 少一个基带处理单元 82 中与第一用户设备的服务小区对应的基带处理单元 对上述第一时域信号和上述第二时域信号进行时频转换和解映射后获得第一 用户设备在该第一用户设备的服务小区和至少一个协作小区的频域信号。 从 而可以在 LTE-A系统中实现服务小区和协作小区的数据交换， 进而可以有效 地减少干扰的影响， 提升无线信号的质量。
图 9为本发明基站设备另一个实施例的结构示意图， 与图 8所示的基站 设备相比， 不同之处在于， 本实施例中， 时域交换模块 81与至少一个基带 处理单元 82位于基站设备的同一基带板内。 图 9以基站设备包括一个时域 交换模块 81和一个基带处理单元 82为例示出， 这时， 上述一个基带处理单 元 82即为与第一用户设备的服务小区对应的基带处理单元。 如图 9所示， 时 域交换模块 81 与上述一个基带处理单元 82位于基站设备的第一基带板 83 内。
本实施例中， 时域交换模块 81可以为时域交换芯片。
上述基站设备可以在 LTE-A 系统中实现服务小区和协作小区的数据交 换， 进而可以有效地减少干扰的影响， 提升无线信号的质量。
图 10为本发明基站设备再一个实施例的结构示意图，与图 8所示的基 站设备相比， 不同之处在于， 本实施例中， 时域交换模块可以包括： 相互 连接的至少两个时域交换芯片， 上述至少两个时域交换芯片分别位于基站 设备中不同的基带板； 上述至少两个时域交换芯片中的第一时域交换芯片 与第一用户设备的服务小区对应的基带处理单元位于上述基站设备的同一基 带板中；
至少两个时域交换芯片中除第一时域交换芯片之外的至少一个时域交换 芯片， 用于接收第一用户设备通过该第一用户设备的至少一个协作小区的射 频通道发送的第二时域信号， 并将上述第二时域信号发送给第一时域交换芯 片；
第一时域交换芯片， 用于接收第一用户设备通过第一用户设备的服务小 区的射频通道发送的第一时域信号， 以及接收至少一个时域交换芯片发送的 第二时域信号， 并将上述第一时域信号和上述第二时域信号发送给第一用户 设备的服务小区对应的基带处理单元。
图 10以基站设备包括一个时域交换模块 81和一个基带处理单元 82为例 示出， 这时， 上述一个基带处理单元 82即为与第一用户设备的服务小区对应 的基带处理单元。 并且图 10以时域交换模块 81 包括相互连接的两个时域 交换芯片为例示出， 图 10 中， 上述两个时域交换芯片分别为第一时域交 换芯片 811和第二时域交换芯片 812。
其中，第一时域交换芯片 81 1与第一用户设备的服务小区对应的基带处 理单元 82位于上述基站设备的第一基带板 84, 第二时域交换芯片 812位于 上述基站设备的第二基带板 85内。
上述基站设备可以在 LTE-A 系统中实现服务小区和协作小区的数据交 换， 进而可以有效地减少干扰的影响， 提升无线信号的质量。
图 11为本发明基站设备又一个实施例的结构示意图，与图 8所示的基 站设备相比， 不同之处在于， 本实施例中， 上述至少一个基带处理单元中与 第一用户设备的服务小区对应的基带处理单元位于该基站设备的第一基带 板； 上述时域交换模块在基站设备中独立设置； 其中， 独立设置是指上述时 域交换模块不设置在基站设备中的任一基带板上。
本实施例中， 时域交换模块， 具体用于将上述第一时域信号和上述第二 时域信号发送给位于第一基带板中的与第一用户设备的服务小区对应的基带 处理单元。
图 1 1以基站设备包括一个时域交换模块 81和一个基带处理单元 82为例 示出， 这时， 上述一个基带处理单元 82即为与第一用户设备的服务小区对应 的基带处理单元， 该基带处理单元 82位于基站设备中的第一基带板 86内。
本实施例中， 时域交换模块 81可以为时域交换芯片。
上述基站设备可以在 LTE-A系统中实现服务小区和协作小区的数据交 换， 进而可以有效地减少干扰的影响， 提升无线信号的质量。
本领域技术人员可以理解附图只是一个优选实施例的示意图， 附图中 的模块或流程并不一定是实施本发明所必须的。
另外， 在本发明各个实施例中的各功能单元可以集成在一个处理单元 中， 也可以是各个单元单独物理存在， 也可以两个或两个以上单元集成在 一个单元中。 所述功能如果以软件功能单元的形式实现并作为独立的产品销售或 使用时， 可以存储在一个计算机可读取存储介质中。 基于这样的理解， 本 发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方 案的部分可以以软件产品的形式体现出来， 该计算机软件产品存储在一个 存储介质中， 包括若干指令用以使得一台计算机设备（可以是个人计算机， 服务器， 或者网络设备等）执行本发明各个实施例所述方法的全部或部分 步骤。 而前述的存储介质包括： U盘、 移动硬盘、 只读存储器 （英文为 Read-Only Memory,英文缩写为 ROM )、随机存取存储器（英文为 Random Access Memory, 英文缩写为 RAM ) 、 磁碟或者光盘等各种可以存储程序 代码的介质。
最后应说明的是： 以上各实施例仅用以说明本发明的技术方案， 而非对 其限制； 尽管参照前述各实施例对本发明进行了详细的说明， 本领域的普通 技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改， 或者对其中部分或者全部技术特征进行等同替换； 而这些修改或者替换， 并 不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims

权 利 要 求 书
1、 一种信号发送方法， 其特征在于， 应用于包括时域交换模块和至 少一个基带处理单元的基站设备中， 所述时域交换模块分别与所述至少一 个基带处理单元连接， 所述方法包括：
所述时域交换模块接收第一用户设备通过所述第一用户设备的服务小 区的射频通道发送的第一时域信号， 以及接收所述第一用户设备通过所述第 一用户设备的至少一个协作小区的射频通道发送的第二时域信号；
所述时域交换模块将所述第一时域信号和所述第二时域信号发送给所述 至少一个基带处理单元中与所述第一用户设备的服务小区对应的基带处理单 元， 以便所述至少一个基带处理单元中与所述第一用户设备的服务小区对应 的基带处理单元对所述第一时域信号和所述第二时域信号进行时频转换和解 映射后获得所述第一用户设备在所述第一用户设备的服务小区和至少一个协 作小区的频域信号。
2、 根据权利要求 1所述的方法， 其特征在于， 所述时域交换模块与所述 至少一个基带处理单元位于所述基站设备的同一基带板内。
3、 根据权利要求 1 所述的方法， 其特征在于， 所述述时域交换模块包 括相互连接的至少两个时域交换芯片， 所述至少两个时域交换芯片分别位 于所述基站设备中不同的基带板；
所述时域交换模块接收第一用户设备通过所述第一用户设备的服务小 区的射频通道发送的第一时域信号， 以及接收所述第一用户设备通过所述第 一用户设备的至少一个协作小区的射频通道发送的第二时域信号包括：
所述至少两个时域交换芯片中除第一时域交换芯片之外的至少一个时域 交换芯片接收所述第一用户设备通过所述第一用户设备的至少一个协作小区 的射频通道发送的第二时域信号， 并将所述第二时域信号发送给所述第一时 域交换芯片； 所述至少两个时域交换芯片中的所述第一时域交换芯片与所 述第一用户设备的服务小区对应的基带处理单元位于同一基带板；
所述第一时域交换芯片接收所述第一用户设备通过所述第一用户设备的 服务小区的射频通道发送的第一时域信号， 以及接收所述至少一个时域交换 芯片发送的第二时域信号。
4、 根据权利要求 3所述的方法， 其特征在于， 所述时域交换模块将所述 第一时域信号和所述第二时域信号发送给所述至少一个基带处理单元中与所 述第一用户设备的服务小区对应的基带处理单元包括：
所述第一时域交换芯片将所述第一时域信号和所述第二时域信号发送给 所述第一用户设备的服务小区对应的基带处理单元。
5、 根据权利要求 1所述的方法， 其特征在于， 所述至少一个基带处理单 元中与所述第一用户设备的服务小区对应的基带处理单元位于所述基站设备 中的第一基带板； 所述时域交换模块在所述基站设备中独立设置；
所述时域交换模块将所述第一时域信号和所述第二时域信号发送给所述 至少一个基带处理单元中与所述第一用户设备的服务小区对应的基带处理单 元包括：
所述时域交换模块将所述第一时域信号和所述第二时域信号发送给位 于所述第一基带板中的与所述第一用户设备的服务小区对应的基带处理单 元。
6、 一种基站设备， 其特征在于， 包括： 时域交换模块和至少一个基带处 理单元； 所述时域交换模块分别与所述至少一个基带处理单元连接；
所述时域交换模块， 用于接收第一用户设备通过所述第一用户设备的服 务小区的射频通道发送的第一时域信号， 以及接收所述第一用户设备通过所 述第一用户设备的至少一个协作小区的射频通道发送的第二时域信号； 并将 所述第一时域信号和所述第二时域信号发送给所述至少一个基带处理单元中 与所述第一用户设备的服务小区对应的基带处理单元；
所述至少一个基带处理单元中与所述第一用户设备的服务小区对应的基 带处理单元， 用于接收所述时域交换模块发送的所述第一时域信号和所述第 二时域信号， 对所述第一时域信号和所述第二时域信号进行时频转换和解映 射后获得所述第一用户设备在所述第一用户设备的服务小区和至少一个协作 小区的频域信号。
7、 根据权利要求 6所述的基站设备， 其特征在于， 所述时域交换模 块与所述至少一个基带处理单元位于所述基站设备的同一基带板内。
8、 根据权利要求 6所述的基站设备， 其特征在于， 所述时域交换模 块包括： 相互连接的至少两个时域交换芯片；
所述至少两个时域交换芯片分别位于所述基站设备中不同的基带板； 所述至少两个时域交换芯片中的第一时域交换芯片与所述第一用户设备的 服务小区对应的基带处理单元位于所述基站设备的同一基带板中；
所述至少两个时域交换芯片中除所述第一时域交换芯片之外的至少一个 时域交换芯片， 用于接收所述第一用户设备通过所述第一用户设备的至少一 个协作小区的射频通道发送的第二时域信号， 并将所述第二时域信号发送给 所述第一时域交换芯片；
所述第一时域交换芯片， 用于接收所述第一用户设备通过所述第一用户 设备的服务小区的射频通道发送的第一时域信号， 以及接收所述至少一个时 域交换芯片发送的第二时域信号， 并将所述第一时域信号和所述第二时域信 号发送给所述第一用户设备的服务小区对应的基带处理单元。
9、 根据权利要求 6所述的基站设备， 其特征在于， 所述至少一个基带处 理单元中与所述第一用户设备的服务小区对应的基带处理单元位于所述基站 设备的第一基带板； 所述时域交换模块在所述基站设备中独立设置；
所述时域交换模块， 具体用于将所述第一时域信号和所述第二时域信号 发送给位于所述第一基带板中的与所述第一用户设备的服务小区对应的基带 处理单元。
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