WO2008098511A1 - A method, system and terminal for implementing upward frequency hopping transmission - Google Patents

A method, system and terminal for implementing upward frequency hopping transmission Download PDF

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Publication number
WO2008098511A1
WO2008098511A1 PCT/CN2008/070279 CN2008070279W WO2008098511A1 WO 2008098511 A1 WO2008098511 A1 WO 2008098511A1 CN 2008070279 W CN2008070279 W CN 2008070279W WO 2008098511 A1 WO2008098511 A1 WO 2008098511A1
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WO
WIPO (PCT)
Prior art keywords
frequency band
time period
frequency
terminal
frequency hopping
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
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PCT/CN2008/070279
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English (en)
French (fr)
Inventor
Shiqiang Suo
Ruiqi Zhang
Shaohui Sun
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Datang Mobile Communications Equipment Co Ltd
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Datang Mobile Communications Equipment Co Ltd
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 Datang Mobile Communications Equipment Co Ltd filed Critical Datang Mobile Communications Equipment Co Ltd
Priority to US12/526,467 priority Critical patent/US8165151B2/en
Priority to JP2009548566A priority patent/JP5258793B2/ja
Priority to KR1020097018839A priority patent/KR101258872B1/ko
Priority to EP08706652.8A priority patent/EP2124370B1/en
Publication of WO2008098511A1 publication Critical patent/WO2008098511A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/713—Spread spectrum techniques using frequency hopping
    • H04B1/7143—Arrangements for generation of hop patterns
    • 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
    • H04L5/0037—Inter-user or inter-terminal allocation
    • 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
    • H04B7/12—Frequency diversity
    • 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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • 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
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • the present invention relates to a transmission method in wireless communication, and more particularly to a method, system and terminal for implementing uplink frequency hopping transmission.
  • LTE Long Term Evolution
  • the way data is transmitted over the wireless link is one of the important topics to be studied to achieve the LTE target.
  • the distributed (distributed) transmission mode is no longer used, and the data transmission is performed by combining localized and frequency hopping.
  • Localized transmission is characterized by a continuous transmission of data over a period of time.
  • Frequency hopping is the hopping of the carrier frequency band of the transmitted data over a certain bandwidth, which reduces the effects of fading and equalizes the interference, thereby obtaining the frequency diversity gain.
  • TTI Transmission Time Interval
  • the transport block is sent in subframes of different frequency bands.
  • LTE is a communication system that adopts a slotted frame structure, and is divided into a frequency division duplex mode and a time division duplex mode according to different duplex modes.
  • time division duplex mode there are generally two frame structures: a Generic Frame Structure and an Alternative Frame Structure.
  • the structure of the Generic Frame Structure and its frequency hopping transmission are described below.
  • Figure 1 is a schematic view of the structure.
  • a 10ms radio frame includes 20 equal-length subframes (or time slots), as shown by #0 to #19 in the figure, each subframe has a length of 0.5ms, and
  • the TTI of the mode is Lms, equal to two subframe durations. Within a TTI, the transport block is sent out in two consecutive subframes.
  • FIG. 2 is a schematic diagram of frequency hopping transmission in this manner. As shown in Figure 2, the frequency bands of the two sub-frames are different. The frequency band of the first sub-frame is ⁇ , and the frequency band of the second sub-frame is ⁇ , and the two frequency bands are continuous in the frequency domain. In this way, both the localized transmission requirements and the frequency diversity gain can be obtained.
  • a 10ms radio frame consists of two 5ms radio subframes.
  • Each wireless subframe includes three special time slots (shown as DwPTS, GP, and UpPTS in the figure) and seven normal time slots (shown as TSO ⁇ TS6 in the figure). Normal time slots are used to transfer data.
  • the duration of each normal time slot is 0.675 ms.
  • the length of the next TTI in this mode is also 0.675ms. In this way, within a TTI, a transport block is sent out in a time slot in a subframe.
  • the present invention provides a method for implementing uplink frequency hopping transmission, which is applicable to a communication system having a slotted frame structure, including:
  • the terminal divides the time slot into a first time period and a second time period in advance.
  • each frequency band includes at least one resource unit, and more than one resource unit in the one frequency band is continuous in the frequency domain;
  • the dividing the time slot into the first time period and the second time period is implemented by:
  • the fourth long block in the time slot and its previous portion are divided into a first time period, and the portion after the fourth long block is divided into a second time period.
  • the frequency band allocated by the notification terminal is implemented by:
  • the bit information mapping table is used to indicate the resource elements included in the allocated two frequency bands, and the bit information mapping table is notified to the terminal.
  • the notification terminal hopping pattern is implemented by:
  • the information of one bit is used to jump from the low frequency band to the high frequency band and from the high frequency band to the low frequency band; the bit information is notified to the terminal.
  • the frequency band and the frequency hopping pattern allocated by the notification terminal are implemented by: notifying the terminal of the start and stop number of the resource unit in the used frequency band of the first time period and the resource unit of the frequency band used in the second time period Start and end number.
  • the frequency band and the frequency hopping pattern allocated by the notification terminal are implemented by: notifying the terminal of the starting number and number of resource units in the used frequency of the first time period, and using the second time period The starting number and number of resource elements in the band.
  • the uplink transmission to the allocated another frequency band in the second time period further includes:
  • the terminal transmits the uplink reference symbol of the terminal on the short block of the idle frequency band corresponding to the terminal in the first time period and the second time period.
  • the transmitting the uplink reference symbol of the terminal on the short block of the idle frequency band corresponding to the terminal further includes:
  • the uplink reference symbol of the terminal is multiplexed with the uplink reference symbol of another terminal on the short block.
  • the two frequency bands are adjacent in the frequency domain.
  • the present invention further provides a system for implementing uplink frequency hopping transmission, including a network side and a terminal, the terminal includes a scheduling information receiving and forwarding unit and an uplink frequency hopping transmission unit; the network side includes a frequency band unified allocation unit, a frequency hopping pattern allocation unit, and scheduling information. Sending unit; wherein The frequency band unified allocating unit is configured to allocate two frequency bands, wherein each frequency band includes at least one resource unit, and when there are more than one resource unit in one frequency band, it is continuous in the frequency domain;
  • the frequency hopping pattern allocating unit is configured to allocate a frequency hopping pattern
  • the scheduling information sending unit is configured to send the allocated frequency band and the frequency hopping pattern to the terminal, and the scheduling information receiving and forwarding unit is configured to receive and forward the allocated frequency band and the frequency hopping pattern to the uplink frequency hopping transmission unit;
  • the uplink frequency hopping transmission unit is configured to transmit to the allocated another frequency band in the second time period after being transmitted on the allocated one frequency band in the first time period.
  • the slot time segmentation unit is configured to divide the time slot into a first time period and a second time period in advance.
  • the present invention further provides a terminal for implementing uplink frequency hopping transmission, including a scheduling information receiving and forwarding unit and an uplink frequency hopping transmission unit, where:
  • the scheduling information receiving and forwarding unit is configured to receive and forward the allocated frequency band and the frequency hopping pattern to the uplink frequency hopping transmission unit;
  • the uplink frequency hopping transmission unit is configured to: after being transmitted on the allocated one frequency band in the pre-divided first time period according to the frequency hopping pattern, skipping to the allocated another frequency band for uploading and outputting in the pre-divided second time period.
  • the terminal further includes a slot time segmentation unit, configured to divide the time slot into a first time period and a second time period in advance.
  • a slot time segmentation unit configured to divide the time slot into a first time period and a second time period in advance.
  • the present invention further provides a system for implementing uplink frequency hopping transmission, including a network side and a terminal, where the terminal includes a scheduling information receiving, parsing, forwarding unit, and an uplink frequency hopping transmission unit; the network side includes a frequency band sequential allocation unit and a scheduling information sending unit. ; among them,
  • the frequency band ordering unit is configured to allocate two frequency bands in order according to a time period, wherein each frequency band includes at least one resource unit, and when there are more than one resource unit in one frequency band, the frequency domain is continuous;
  • the scheduling information sending unit is configured to send the allocated frequency band to the terminal;
  • the scheduling information receiving, parsing, and forwarding unit is configured to receive the transmitted frequency band, and from the two frequencies
  • the frequency hopping pattern is parsed in the time segment sequence of the segment, and the allocated frequency band and the parsed frequency hopping pattern are forwarded to the uplink frequency hopping transmission unit;
  • the uplink frequency hopping transmission unit is configured to transmit according to a frequency hopping pattern on a allocated frequency band in a pre-divided first time period, and then jump to another allocated frequency band in a pre-divided second time period. .
  • the terminal further includes a slot time segmentation unit, configured to divide the time slot into a first time period and a second time period in advance.
  • a slot time segmentation unit configured to divide the time slot into a first time period and a second time period in advance.
  • the present invention further provides a terminal for implementing uplink frequency hopping transmission, including a scheduling information receiving, parsing, forwarding unit, and an uplink frequency hopping transmission unit, where
  • the scheduling information receiving, parsing, and forwarding unit is configured to receive the sent frequency band, parse the frequency hopping pattern from the time period sequence of the two frequency bands, and forward the allocated frequency band and the parsed frequency hopping pattern to the uplink.
  • Frequency hopping transmission unit
  • the uplink frequency hopping transmission unit is configured to transmit according to a frequency hopping pattern on a frequency band allocated in a pre-divided first time period, and then hop on the allocated second frequency band to transmit on another allocated frequency band. .
  • the terminal further includes a slot time segmentation unit, configured to divide the time slot into a first time period and a second time period in advance.
  • a slot time segmentation unit configured to divide the time slot into a first time period and a second time period in advance.
  • the present invention divides the time slot into a first time period and a second time period in advance, and allocates two resource units (Resource Unit, RU) to two frequency bands used for frequency hopping. And notifying the allocated frequency band and the frequency hopping pattern to the terminal, and the terminal transmits the frequency band in the allocated frequency band in the first time period according to the frequency hopping pattern, and then skips to the allocated another frequency band in the second time period to realize the transmission.
  • the frequency hopping gain is obtained in a TTI of the Alternative Frame Structure system.
  • FIG. 1 is a structural diagram of a general frame structure in the prior art
  • FIG. 2 is a schematic diagram of frequency hopping transmission of a general frame structure in the prior art
  • FIGS. 4-1 and 4-2 are short CP and long CP, respectively;
  • Figure 5 is a flow chart of the method of the present invention.
  • FIG. 6 is a structural diagram of a time slot in which a time slot is divided into two segments in time according to the present invention, and is divided into FIGS. 6-1 and 6-2, which are short CP and long CP, respectively;
  • Figure 8 is a block diagram of a system of the present invention.
  • FIG. 9 is a block diagram of another system of the present invention.
  • Figure 10 is a block diagram of a terminal of the present invention.
  • Figure 11 is a block diagram of another terminal of the present invention.
  • the present invention provides an uplink frequency hopping transmission method, which divides a pre-slot into a first time period and a second time period, allocates two consecutive RUs to two frequency bands used for frequency hopping, and allocates the frequency band.
  • the frequency band and the frequency hopping pattern are notified to the terminal.
  • the terminal transmits on a frequency band allocated in the pre-divided first time period and then hops on the allocated second frequency band to transmit on another frequency band allocated in advance.
  • the transmission block to be transmitted needs to undergo an additional error correction code and channel coding process, and the acquisition of the frequency diversity gain needs to be combined with the error correction code and channel coding.
  • the data in the transport block in a TTI if the distributed bandwidth is larger than the frequency domain bandwidth of the bearer, the selective fading occurs in the frequency domain bandwidth of the transport block larger than the bearer subframe, and the error correction code and the channel coding may be used.
  • the decoding gain is obtained from the transmission information without frequency domain selective fading in channel decoding, which is equivalent to obtaining the frequency diversity gain.
  • the specific manner is as described in FIG. 2 above.
  • a part of the transport block is transmitted in the frequency band B in the first time period, and another part of the transport block is transmitted in the frequency band A in the second time period, so that the TTI is transmitted through the TTI.
  • the frequency hopping gains the frequency diversity gain. Between the TTIs, there are different transport blocks, and the error correction codes of different transport blocks are different. Therefore, the selective fading cannot be overcome by different error correcting codes and channel coding, and the frequency diversity gain cannot be obtained. For the above reasons, in the case of Alternative Frame Structure, press The frequency diversity gain cannot be obtained according to the existing method.
  • Fig. 4 shows the structure. As shown in Figure 4, it is divided into short CP and long CP, as shown in Figure 4-1 and 4-2. Both cases include CP, SB, LB and TI.
  • OFDM Orthogonal Frequency Division Multiplexing
  • SB Short Block
  • LB Long Block
  • TI Time Interval
  • the uplink physical resource of one subframe can be divided into several resource units RU in the frequency domain, and the length of one RU in the time domain is a time slot, that is, 0.675 ms.
  • the domain contains k subcarriers, for example k can be equal to 12.
  • the prior art numbers all RUs in a time slot, and the consecutive RUs in the frequency domain are also consecutively numbered.
  • the base station schedules the physical resources, and allocates a group of consecutive RUs to the terminal for uplink transmission.
  • the allocation of RU also needs to be taken into consideration.
  • FIG. 5 shows a method for implementing uplink frequency hopping transmission, which specifically includes:
  • Step 501 Pre-division divides the time slot into a first time period and a second time period.
  • Fig. 6 shows a slot structure in which one slot is temporally divided into two segments. It is divided into Figure 6-1 and Figure 6-2.
  • the LB1 to LB4, the CP before LB4, and SB1 are divided into the first time period, and the subsequent part is divided into the second time period.
  • Figure 6-1 shows the case of a short CP
  • Figure 6-2 shows the case of a long CP.
  • Step 502 Allocating two frequency bands including RU.
  • the assigned RUs must be contiguous in order to facilitate scheduling.
  • the RUs in each frequency band are continuous.
  • the number of the two RUs may be the same or different, and the specific number may be determined by the scheduler, and details are not described herein again.
  • Step 503 Notifying the terminal of the allocated frequency band and frequency hopping pattern.
  • This step may use a resource mapping information table (bitmap) to notify the terminal of the RU allocated in the foregoing step. Assuming that the total number of available RUs in the uplink is 8, then the bitmap of a resource map can be as shown in Table 1.
  • bitmap resource mapping information table
  • the indication information 0 indicates that the RU is not allocated to the terminal, and 1 indicates that the RU is allocated to the terminal for use.
  • the method indicates that the assigned RUs are 0, 1, and 5, 6 respectively, and the two RUs are consecutive.
  • the frequency hopping pattern can be jumped from the low frequency band to the high frequency band, or it can jump to the low frequency band with the high frequency band.
  • the indication of the resource mapping is in the form of a bit information mapping table
  • the resource mapping indication corresponding to the Localized case in the prior art needs to add an additional bit of information to notify the terminal of the specific frequency hopping pattern. For example, it can be set to increase 0 to jump from the low band to the high band, and 1 to jump from the high band to the low band. Of course, 0 and 1 represent the opposite meaning.
  • the indication of the resource mapping may also adopt the following other method:
  • the terminal number of the notification terminal RU is notified.
  • an additional information is required to indicate the RU start and stop sequence number of the second frequency band.
  • the start and end numbers of the RU are numbered from low to high, and the terminal can be informed of the RU start and end number information in the first time period, and the RU start and stop number information in the second time period, so that the terminal hopping pattern can be implicitly notified.
  • the resource mapping indication manner for notifying the terminal RU start sequence number is as shown in Table 2: First time period information second time period information
  • the RU in the first time period is 1 ⁇ 3
  • the RU in the second time period is 5 ⁇ 7
  • this method implicitly indicates a frequency hopping pattern with a low frequency band jumping to the high frequency band.
  • the RU in the first time period is 5 ⁇ 7
  • the RU in the second time period is 1 ⁇ 3
  • this method implicitly indicates the frequency hopping pattern that jumps from the high frequency band to the low frequency band.
  • the RU starting number of the first time period is 1, and the RU number is 3, the RU of the first time period is 1 ⁇ 3, and the RU starting number of the second time period is 5, the number of RU 3, the RU of the second time period is 5 ⁇ 7, so that the first time period uses the low frequency band, and the second time period uses the high frequency band, so the method can also implicitly indicate that the low frequency band jumps to High frequency band hopping pattern.
  • the frequency hopping pattern from the high frequency band to the low frequency band is similar to this, and is not exemplified here.
  • Step 504 After the uplink transmission is performed on the allocated one frequency band in the pre-divided first time period, the terminal jumps to the allocated another frequency band in the pre-divided second time period according to the frequency hopping pattern. Line transfer.
  • the terminal transmits on one time slot in a TTI, according to the frequency hopping pattern, after transmitting in one frequency band allocated in the first time, and then jumping on another frequency band allocated in the second time period.
  • the frequency hopping in a TTI in the uplink transmission of the Alternative Frame Structure system is realized, and the frequency diversity gain is obtained.
  • SB1 and SB2 in this step are transmitted according to the time period and frequency band determined by the frequency hopping method, and are used to carry related information of a terminal, and the information specifically includes an uplink reference symbol for demodulating data.
  • SB1 and SB2 may not perform frequency hopping, but for the same frequency band, the SBs of both time segments are transmitted, that is, the SB is also transmitted in the frequency band in which the terminal is idle.
  • SB1 and SB2 are transmitted in the same frequency band.
  • the second frequency band of the first time period is transmitted by the data of the first terminal, the relevant reference symbol of the first terminal is included in the SB1, and the SB2 transmitted by the second frequency band of the second time period also includes the correlation of the first terminal. Reference symbol.
  • the reference symbols of the first terminal are transmitted on both SBs in the same frequency band, which can improve the performance of channel estimation and improve the performance of the transmission.
  • the data of the second terminal is not transmitted on the long block of the second frequency band in the second time period, so the data of the second terminal can be transmitted.
  • the second terminal is also transmitted on the first frequency band in the first time period.
  • the data in this way, when the uplink frequency hopping transmission of the data of the first user is performed, the data of the second user is transmitted by using the frequency band of the idle time period, thereby improving the utilization of the wireless resource.
  • the information about the two terminals needs to be transmitted in the SB, and the related information of the two terminals can be multiplexed by frequency division or code division.
  • the same terminal is separately transmitted on two mutually discontinuous frequency bands of the same SB, and the single carrier characteristics required for OFDM in LTE are no longer maintained.
  • it may be required during scheduling.
  • the first frequency band and the second frequency band are adjacent.
  • FIG. 8 shows the system of the present invention.
  • the system of the present invention includes a network side and a terminal.
  • the terminal includes a scheduling information receiving and forwarding unit 802 and an uplink frequency hopping transmission unit 803, and preferably further includes a time slot time segmentation unit 801.
  • the network side includes a frequency band unified allocating unit 804, a frequency hopping pattern allocating unit 805, and a scheduling information sending list. Yuan 806. among them:
  • the slot time segmentation unit 801 is connected to the uplink frequency hopping transmission unit 803 for temporally dividing the time slot into a first time period and a second time period.
  • the frequency band unified allocating unit 804 is connected to the scheduling information sending unit 806 for allocating two frequency bands, wherein each frequency band includes at least one resource unit, and more than one resource unit in one frequency band is continuous in the frequency domain.
  • the frequency hopping pattern assigning unit 805 is connected to the scheduling information transmitting unit 806 for allocating the frequency hopping pattern.
  • the scheduling information sending unit 806 is connected to the RU unified allocation unit 804, the frequency hopping pattern allocating unit 805, and the scheduling information receiving and forwarding unit 802, respectively, for transmitting the allocated frequency band and the frequency hopping pattern to the scheduling information receiving and forwarding unit 802 of the terminal.
  • the scheduling information receiving and forwarding unit 802 is connected to the scheduling information transmitting unit 806 for receiving and forwarding the allocated frequency band and frequency hopping pattern to the uplink frequency hopping transmission unit 803.
  • the unit 802 is connected to transmit on a segment allocated in the pre-divided first time period according to the frequency hopping pattern, and then skips to the allocated another frequency band in the pre-divided second time period.
  • the system includes a network side and a terminal.
  • the terminal includes a scheduling information receiving, parsing, forwarding unit 901 and an uplink frequency hopping transmission unit 802, and preferably also includes a slot time segmentation unit 801.
  • the network side includes a band order allocating unit 902 and a scheduling information transmitting unit 803. among them:
  • the frequency band ordering unit 902 is connected to the scheduling information sending unit 803, and is configured to sequentially allocate two frequency bands according to a time period, wherein each frequency band includes at least one resource unit, and when there are more than one resource unit in one frequency band, the frequency domain is continuously. Wherein, the frequency band is allocated in the order of time segments to implicitly indicate the frequency hopping pattern. Specifically, as described in the foregoing method.
  • the scheduling information transmitting unit 803 is configured to transmit the allocated frequency band to the terminal.
  • the scheduling information receiving, parsing, and forwarding unit 901 is respectively connected to the scheduling information sending unit 803 and the uplink frequency hopping transmitting unit 802, and configured to receive the sent RU allocation information and the first frequency used for frequency hopping. Segment and second frequency band, and parsing the frequency hopping pattern from the RU allocation information, and forwarding the allocated RU, the first frequency band and the second frequency band used for frequency hopping, and the parsed frequency hopping pattern to the uplink frequency hopping transmission Unit mouse
  • the uplink frequency hopping transmission unit 802 is configured to: after being transmitted on a frequency band allocated in the pre-divided first time period according to the frequency hopping pattern, jump to another allocated frequency band in the pre-divided second time period to upload and output.
  • FIG. 10 shows the terminal.
  • the terminal corresponds to the terminal portion of the first system described above. That is, the terminal includes a scheduling information receiving and forwarding unit 802 and an uplink frequency hopping transmission unit 803, and preferably further includes a time slot time segmentation unit.
  • the slot time segmentation unit 801 is connected to the uplink frequency hopping transmission unit 803 for temporally dividing the time slot into a first time period and a second time period.
  • the scheduling information receiving and forwarding unit 802 is configured to receive and forward the allocated frequency band and frequency hopping pattern to the uplink frequency hopping transmission unit 803.
  • the unit 802 is connected to transmit on a frequency band allocated in the pre-divided first time period according to the frequency hopping pattern, and then skips to the allocated another frequency band in the pre-divided two time period.
  • FIG. 11 shows the terminal.
  • the terminal corresponds to the terminal portion of the second system described above. That is, the terminal includes a scheduling information receiving, parsing, forwarding unit 901 and an uplink frequency hopping transmission unit 802.
  • the terminal may further include a slot time segmentation unit 801. among them:
  • the slot time segmentation unit 801 is connected to the uplink frequency hopping transmission unit 803 for temporally dividing the time slot into a first time period and a second time period.
  • the scheduling information receiving, parsing, and forwarding unit 901 is connected to the scheduling information sending unit 803 and the uplink frequency hopping transmission unit 802, respectively, for receiving the transmitted frequency band, and parsing the frequency hopping pattern from the time period sequence of the two frequency bands, and Forwarding the allocated frequency band and the parsed frequency hopping pattern to the uplink frequency hopping transmission list Element 802.
  • the uplink frequency hopping transmission unit 803 is connected to the slot time segmentation unit 801 and the scheduling information receiving, parsing, and forwarding unit 901, respectively, and is configured to transmit on a frequency band allocated in a pre-divided first time period according to a frequency hopping pattern. Jumping to another allocated frequency band during the second time period divided in advance.
  • the present invention divides the time slot into a first time period and a second time period in advance, allocates two RUs to the two frequency bands used for frequency hopping, and allocates the frequency band and the frequency hopping pattern. Notifying the terminal that the terminal transmits on the allocated one frequency band according to the frequency hopping pattern in the pre-divided first time period, and then jumps to another allocated frequency band in the pre-divided second time period, thereby realizing the Alternative Frame Structure system. Frequency hopping within a TTI, resulting in a frequency diversity gain.
  • the division of the time slot in the embodiment of the present invention is not limited to this. When the time slot is pre-divided, it may also be divided into multiple segments (may be divided according to specific situations, for example, may be divided into three time segments, four times are here) No longer detailed description.

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Description

实现上行跳频传输的方法、 系统和终端
本申请要求于 2007 年 2 月 9 日提交中国专利局、 申请号为 200710063768.3、 发明名称为"实现上行跳频传输的方法、 系统和终端"的中国 专利申请的优先权， 其全部内容通过引用结合在本申请中。
技术领域
本发明涉及无线通信中的传输方法，特别涉及一种实现上行跳频传输的方 法、 系统和终端。
背景技术
目前， 全球无线通信正呈现出移动化、 宽带化和 IP ( Internet Protocol, 网 际协议）化的趋势， 移动通信行业的竟争极为激烈。 为了维持在移动通信行业 中的竟争力和主导地位， 第三代合作伙伴计划 ( The 3rd Generation Partner Project, 3 GPP )组织启动了长期演进（Long Term Evolution, LTE )计划。 LTE 计划的目标是： 更高的数据速率， 更低的时延， 改进的系统容量和覆盖范围及 较低的成本。
数据在无线链路上的传输方式是实现 LTE 目标而所需研究的重要课题之 一。 目前的 LTE方案中， 已经确定不再采用分布式（ Distributed )的传输方式， 而是采用集中式（Localized ) 与跳频结合的方式进行数据传输。 Localized传 输的特点是在一个时间段内，传输数据的带宽是连续的。跳频是传输数据的载 波频段在一定的带宽范围内进行跳变，这样能降低衰落的影响，并使干扰均化， 从而获得频率分集增益。 具体为， 在一个传输时间间隔 （Transmission Time Interval, TTI ) 内， 传输块在不同频段的子帧中发送出去。
LTE是采用时隙化帧结构的通信系统，根据双工方式的不同区分为频分双 工方式和时分双工方式。 当采用时分双工方式时， 其帧结构一般有两种： 通用 帧结构 ( Generic Frame Structure )和代用帧结构 ( Alternative Frame Structure )。 以下介绍 Generic Frame Structure的结构及其跳频传输方式。 图 1为该结构的 示意图。如图所示， 一个 10ms的无线帧包括 20个等长的子帧（或称为时隙）， 如图中的 #0至 # 19所示， 每个子帧的长度为 0.5ms， 并且， 该方式的 TTI为 lms, 等于两个子帧时长。 一个 TTI内， 传输块在连续的两个子帧内 送出 去。 图 2是该方式的跳频传输示意图。 如图 2所示， 两个子帧所在频段不同， 第一子帧所在的频段标识为 Β, 第二子帧所在的频段标识为 Α, 且这两个频段 在频域内是连续的。 这样， 既符合 Localized传输的要求， 又能获得频率分集 增益。
Alternative Frame Structure的帧结构: ^图 3所示， 一个 10ms的无线帧包 括两个 5ms的无线子帧。每个无线子帧包括 3个特殊时隙（如图中的 DwPTS、 GP和 UpPTS所示 )和 7个普通时隙 （如图中的 TSO ~ TS6所示）。 普通时隙 用来传输数据。 每个普通时隙的时长为 0.675ms。 而该方式下一个 TTI的时长 也为 0.675ms。 这种方式下， 一个 TTI内， 一个传输块在一个子帧中一个时隙 内 ^送出去。
显然地， 该方式下， 一个 TTI内承载一个传输块的仅为一个子帧， 这一个 子帧按照现有的方法无法进行跳频， 进而无法获得频率分集增益。 另外， 即使 采用不同子帧间进行跳频，由于不同子帧承载的不是同一TTI内的同一传输块 , 对一个传输块来说， 无法通过跳频方式产生增益。
发明内容
本发明的目的是提供一种实现上行跳频传输的方法、 系统和终端， 以克服 现有技术中无法进行跳频的缺点。
为解决上述技术问题，本发明提供一种实现上行跳频传输的方法，适用于 具有时隙化帧结构的通信系统， 包括：
接收网络侧分配的频段和跳频样式；
根据所述跳频样式在预先划分的第一时间段内在分配的一个频段上进行 上行传输后 , 在预先划分的第二时间段跳到分配的另一频段上进行上行传输。
优选的 , 终端预先将时隙从时间上划分为第一时间段和第二时间段。
优选的， 分配两个频段， 每个频段包括至少一个资源单元， 所述一个频段 内的资源单元多于一个时在频域内是连续的；
通知终端分配的频段和跳频样式。 优选的，所述将时隙从时间上划分为第一时间段和第二时间段由以下方式 实现：
将时隙内第四长块及其之前的部分划分为第一时间段，第四长块之后的部 分划分为第二时间段。
优选的， 所述通知终端分配的频段由以下方式实现：
采用比特信息映射表指示分配的两个频段包含的资源单元，并将该比特信 息映射表通知给终端。
优选的， 所述通知终端跳频样式由以下方式实现：
采用一个比特的信息表示由低频段跳到高频段和由高频段跳到低频段； 将该比特信息通知给终端。
优选的 , 所述通知终端分配的频段和跳频样式由以下方式实现： 通知终端在第一时间段的所使用的频段中资源单元的起止编号和第二时 间段所使用的频段中资源单元的起止编号。
优选的 , 所述通知终端分配的频段和跳频样式由以下方式实现： 通知终端在第一时间段的所使用的频度中资源单元的起始编号和数目 ,及 第二时间段所使用的频段中资源单元的起始编号和数目。
优选的 , 所述终端在第一时间段内在分配的一个频段上进行上行传输后， 在第二时间段跳到分配的另一频段上进行上行传输还包括：
在第一时间段和第二时间段内，所述终端在该终端所对应的空闲频段的短 块上传输该终端的上行参考符号。
优选的，所述在该终端所对应的空闲频段的短块上传输所述终端的上行参 考符号还包括：
所述终端的上行参考符号与另一终端的上行参考符号复用在所述短块上。 优选的， 所述两个频段在频域内相邻。
本发明还提供一种实现上行跳频传输的系统， 包括网络侧和终端，终端包 括调度信息接收转发单元和上行跳频传输单元； 网络侧包括频段统一分配单 元， 跳频样式分配单元和调度信息发送单元； 其中， 所述频段统一分配单元， 用于分配两个频段，其中每个频段包括至少一个 资源单元 , 且一个频段内的资源单元多于一个时在频域内是连续的；
所述跳频样式分配单元， 用于分配跳频样式；
所述调度信息发送单元， 用于发送分配频段和跳频样式到终端； 所述调度信息接收转发单元，用于接收并转发分配的频段和跳频样式到上 行跳频传输单元；
所述上行跳频传输单元，用于 ^居跳频样式在第一时间段内在分配的一个 频段上传输后 , 在第二时间段跳到分配的另一频段上传输。
优选的， 时隙时间分段单元， 用于预先将时隙从时间上划分为第一时间段 和第二时间段。
本发明再提供一种实现上行跳频传输的终端，包括调度信息接收转发单元 和上行跳频传输单元， 其中：
所述调度信息接收转发单元，用于接收并转发分配的频段和跳频样式到上 行跳频传输单元；
所述上行跳频传输单元，用于根据跳频样式在预先划分的第一时间段内在 分配的一个频段上传输后 ,在预先划分的第二时间段跳到分配的另一频段上传 输。
优选的， 所述终端还包括时隙时间分段单元， 用于预先将时隙从时间上划 分为第一时间段和第二时间段。
本发明又提供一种实现上行跳频传输的系统， 包括网络侧和终端， 终端包 括调度信息接收、解析、 转发单元和上行跳频传输单元； 网络侧包括频段按序 分配单元和调度信息发送单元； 其中，
所述频段按序分配单元， 用于按照时间段顺序分配两个频段，其中每个频 段包括至少一个资源单元，且一个频段内的资源单元多于一个时在频域内是连 续的；
所述调度信息发送单元， 用于发送分配的频段到终端；
所述调度信息接收、 解析、 转发单元， 用于接收发来的频段， 并从两个频 段的时间段顺序中解析出跳频样式，并将分配的频段和解析出的跳频样式转发 到上行跳频传输单元；
所述上行跳频传输单元，用于^^据跳频样式在预先划分的第一时间段内在 分配的一个频段上传输后 ,在预先划分的第二时间段跳到分配的另一频段上传 输。
优选的， 所述终端还包括时隙时间分段单元， 用于预先将时隙从时间上划 分为第一时间段和第二时间段。
本发明又提供一种实现上行跳频传输的终端， 包括调度信息接收、 解析、 转发单元和上行跳频传输单元， 其中，
所述调度信息接收、 解析、 转发单元， 用于接收发来的频段， 并从两个频 段的时间段顺序中解析出跳频样式，并将分配的频段和解析出的跳频样式转发 到上行跳频传输单元；
所述上行跳频传输单元，用于^^据跳频样式在预先划分的第一时间段内分 配的一个频段上传输后， 在预先划分的第二时间段跳到分配的另一频段上传 输。
优选的， 所述终端还包括时隙时间分段单元， 用于预先将时隙从时间上划 分为第一时间段和第二时间段。
由以上本发明提供的技术方案可知，本发明预先将时隙从时间上划分为第 一时间段和第二时间段， 分配两段资源单位（Resource Unit, RU )到跳频所 使用两个频段， 并将该分配的频段和跳频样式通知给终端， 终端根据跳频样式 在第一时间段内在分配的一个频段上传输后，在第二时间段跳到分配的另一频 段上传输， 实现了 Alternative Frame Structure系统一个 TTI内的跳频， 从而获 得了频率分集增益。
附图说明
图 1为现有技术中通用帧结构的结构图；
图 2为现有技术中通用帧结构的跳频传输示意图；
图 3为现有技术中代用帧结构的结构图； 图 4为本发明实施例中代用帧结构的时隙结构图， 分为图 4-1和 4-2， 分 别为短 CP和长 CP的情况；
图 5为本发明方法的流程图；
图 6 为本发明将一个时隙从时间上划分为两段后的时隙结构图， 分为图 6-1和 6-2， 分别为短 CP和长 CP的情况；
图 7为本发明 SB不进行跳频的传输示意图；
图 8为本发明一种系统的框图；
图 9为本发明另一种系统的框图；
图 10为本发明一种终端的框图；
图 11为本发明另一种终端的框图。
具体实施方式
本发明提供一种实现上行跳频传输方法，将预先时隙从时间上划分为第一 时间段和第二时间段， 分配两段连续的 RU到跳频所使用两个频段， 并将该分 配的频段和跳频样式通知给终端， 终端 据跳频样式，在预先划分的第一时间 段内分配的一个频段上传输后在预先划分的第二时间段跳到分配的另一频段 上传输。
本领域技术人员知道，待发送的传输块需要经过附加纠错码以及信道编码 这一处理过程，而频率分集增益的获得需要和纠错码以及信道编码结合才能达 到。 一个 TTI内的传输块内的数据， 如果分布带宽大于承载的子帧频域带宽， 那么传输块比承载子帧大的这一部分频域带宽会发生选择性衰落，通过纠错码 以及信道编码可以克服一部分选择性衰落 ,在信道译码时从未经频域选择性衰 落的传输信息上获得译码增益，从而等效于获得频率分集增益。具体方式即为 前面图 2所述， 一个 TTI内， 在第一个时间段中一部分传输块在频段 B传输， 在第二个时间段中另一部分传输块在频段 A传输， 这样， 通过 TTI内的跳频 获得了频率分集增益。 而在 TTI之间， 是不同的传输块， 不同传输块的纠错码 不同， 因此不能通过不同的纠错码以及信道编码克服选择性衰落，也就不能得 到频率分集增益。 由于上述原因， 在 Alternative Frame Structure的情况下， 按 照现有方法不能得到频率分集增益。
为了使本技术领域的人员更好地理解本发明方案，在说明本发明之前，先 介绍下述技术。
首先介绍 Alternative Frame Structure的一个时隙的结构， 图 4示出了该结 构。 如图 4所示， 分为短 CP和长 CP两种情况， 分别如图 4-1和 4-2。 两种情 况都包含 CP, SB, LB和 TI。 本领域技术人员知道， LTE中采用正交频分复 用 ( Orthogonal Frequency Division Multiplexing, OFDM )技术, CP表示每个 OFDM符号之间加入的循环前缀，以克服多径带来的符号间的干扰。 SB ( Short Block )是短块， 主要用于传输导频。 LB ( Long Block )是长块， 主要用于传 输数据和控制信令。 SB的长度是 LB长度的一半。 TI ( Time Interval )是时隙 之间的时间间隔。 当采用短 CP的情况， 一个时隙中有 7个长块和 2个短块， 而采用长 CP的情况， 一个时隙中有 8个长块和 2个短块。
另外 , 对于 Alternative Frame Structure的系统来说， 一个子帧的上行物理 资源可以在频域上划分为若干个资源单位 RU, —个 RU在时域内为一个时隙 的时长， 即 0.675ms， 在频域内包含 k个子载波， 例如 k可以等于 12。 为了调 度方便， 现有技术将一个时隙内的所有 RU进行编号， 且频域内连续的 RU其 编号也连续。 这样， 在上行 Localized传输时， 基站对物理资源进行调度， 将 一组连续的 RU分配给终端进行上行传输。在本发明提出的实现上行跳频传输 的方法中， RU的分配也是需要考虑在内的。
下面结合附图和实施方式对本发明作进一步的详细说明。
图 5示出一种实现上行跳频传输的方法， 具体包括：
步骤 501 : 预先划分将时隙从时间上划分为第一时间段和第二时间段。 图 6示出了将一个时隙从时间上划分为两段后的时隙结构。分为图 6-1和 图 6-2。 将 LB1 ~ LB4, LB4之前的 CP, 和 SB1划分为第一时间段， 之后的部 分划分为第二时间段。 图 6-1是短 CP的情况， 图 6-2是长 CP的情况。
步骤 502: 分配两个包括 RU的频段。
前面提到， 需要分配包括 RU的频段给终端进行上行传输， 且现有技术规 定分配的 RU必须是连续的， 这样才能利于调度。 该步骤中， 分配的两个频段 中都至少包含的一个 RU, 且 RU大于一个时， 每个频段内的 RU是连续的。 两段 RU的数目可以相同也可以不相同， 具体数目可以由调度器分配时决定， 在此不再赘述。
步骤 503: 通知终端分配的频段和跳频样式。
该步骤可以采用资源映射信息表（bitmap ) 通知终端前述步骤中分配的 RU。 假设上行可用 RU总数为 8, 那么一个资源映射的 bitmap可以如表 1所
Figure imgf000011_0001
表 1. RU的资源映射图
其中， 指示信息 0表示该 RU未分配给终端使用， 1表示该 RU分配给终 端使用。
可见， 该方式指示了分配的 RU分别为 0、 1 , 和 5、 6两段， 且这两段 RU 分别都是连续的。
跳频样式可以为由低频段跳到高频段，也可以为有高频段跳到低频段。如 果资源映射的指示采用比特信息映射表（bitmap )的方式， 此时相对于现有技 术中 Localized情况的资源映射指示， 需要额外增加一个比特的信息， 以通知 终端具体的跳频样式。 例如可以设定增加 0代表由低频段跳到高频段， 1代表 由高频段跳到低频段， 当然， 0和 1代表相反的意义也可。
资源映射的指示也可以采用以下另一种方式： 通知终端 RU的起止序号。 此时相对于 Localized情况的资源映射指示， 需要额外增加信息表示第二频段 的 RU起止序号。 一般 RU的起止序号是由低到高编号的， 可以告知终端在第 一时间段的 RU起止编号信息， 第二时间段的 RU起止编号信息， 这样可以隐 含的通知终端跳频样式。
例如， 仍然^殳上行可用的 RU数目为 0到 7， 通知终端可用 RU分别为 1到 3， 5到 7， 那么通知终端 RU起止序号的资源映射指示方式如表 2所示： 第一时间段信息 第二时间段信息
RU起止编号 1 3 5 7
表 2. 隐含由低频段跳到高频段的资源映射指示表
该表 2中， 第一时间段的 RU为 1 ~ 3， 第二时间段的 RU为 5 ~ 7, 可以 得知， 第一时间段使用的是低频段， 第二时间段使用的是高频段， 因此该方式 隐含指示了有低频段跳到高频段的跳频样式。
反之， 如果通知终端 RU起止序号的资源映射指示方式如表 3所示：
Figure imgf000012_0001
表 3. 隐含由高频段跳到低频段的资源映射指示表
该表 3中， 第一时间段的 RU为 5 ~ 7， 第二时间段的 RU为 1 ~ 3 , 可以 得知， 第一时间段使用的是高频段， 第二时间段使用的是低频段， 因此该方式 隐含指示了由高频段跳到低频段的跳频样式。
此外， 还可以采用指示 RU的起始序号和 RU数目的方式， 同样可以实现 隐含指示跳频样式。 如表 4所示：
Figure imgf000012_0002
表 4. 隐含由低频段跳到高频段的资源映射指示表
可见， 该表 4中， 第一时间段的 RU起始标号为 1， RU数目为 3， 则第一 时间段的 RU为 1 ~ 3， 第二时间段的 RU起始标号为 5, RU数目为 3， 则第 二时间段的 RU为 5 ~ 7， 这样， 第一时间段使用的是低频段， 第二时间段使 用的是高频段， 因此该方式也可隐含指示由低频段跳到高频段的跳频样式。
由高频段跳到低频段的跳频样式与此类似， 在此不再举例。
步骤 504: 终端根据跳频样式在预先划分的第一时间段内在分配的一个频 段上进行上行传输后，在预先划分的第二时间段跳到分配的另一频段上进行上 行传输。
该步骤中， 终端在一个 TTI内的一个时隙上， 据跳频样式， 在第一时间 内的分配的一个频段上传输后，在第二时间段跳到分配的另一频段上传输。这 样， 实现了 Alternative Frame Structure系统上行传输中一个 TTI内的跳频， 从 而获得了频率分集增益。
该步骤中的 SB1和 SB2是按照跳频方式确定的时间段和频段进行传输， 用于承载一个终端的相关信息，该信息具体包括上行参考符号，用于解调数据。 另外， 该步骤中 SB1和 SB2也可以不进行跳频， 而是对于同一频段， 两个时 间段的 SB都进行传输， 也就是在该终端空闲的频段上， SB也进行传输。 这 样 SB1和 SB2在同一频段中都进行了传输。 如图 7所示， 第一时间段第二频 段传输的是第一终端的数据， SB1中包括第一终端的相关参考符号， 第二时间 段第二频段传输的 SB2也包括第一终端的相关参考符号。 这样， 在同一频段 内的两个 SB上都传输了第一终端的参考符号，这样可以提高信道估计的性能， 从而改善传输的性能。 而此时， 第二时间段第二频段的长块上此时并没有传输 终端的数据， 因此可以传输第二终端的数据； 同样的， 第一时间段第一频段上 也传输第二终端的数据， 这样， 在进行上行跳频传输第一用户的数据时， 利用 空闲的时间段的频段传输了第二个用户的数据，提高了无线资源利用率。该方 式中， SB中需要传输的是两个终端的相关信息， 这两个终端的相关信息可以 采用频分或码分的方式复用在一起。
但是， 该方式中同一终端在同一 SB的两个彼此不连续频段上分别进行了 传输， 而导致不再保持 LTE中 OFDM要求的单载波的特性， 为了保持其单载 波特性 , 可以在调度时要求第一频段和第二频段相邻。
以下介绍本发明的一种实现上行跳频传输的系统，图 8示出了本发明的系 统。
如图所示，本发明的系统包括网络侧和终端。终端包括调度信息接收转发 单元 802和上行跳频传输单元 803，优选的还可以包括时隙时间分段单元 801。 网络侧包括频段统一分配单元 804， 跳频样式分配单元 805和调度信息发送单 元 806。 其中：
时隙时间分段单元 801与上行跳频传输单元 803相连，用于预先将时隙从 时间上划分为第一时间段和第二时间段。
频段统一分配单元 804与调度信息发送单元 806相连，用于分配两个频段， 其中每个频段包括至少一个资源单元，且一个频段内的资源单元多于一个时在 频域内是连续的。
跳频样式分配单元 805与调度信息发送单元 806相连，用于分配跳频样式。 调度信息发送单元 806分别与 RU统一分配单元 804、 跳频样式分配单元 805和调度信息接收转发单元 802相连， 用于发送分配的频段和跳频样式到终 端的调度信息接收转发单元 802。
调度信息接收转发单元 802与调度信息发送单元 806相连，用于接收并转 发分配的频段和跳频样式到上行跳频传输单元 803。 单元 802相连，用于根据跳频样式在预先划分的第一时间段内分配的一个段上 传输后， 在预先划分的第二时间段跳到分配的另一频段上传输。
利用该系统实现上行跳频传输的方法与前述方法类似， 在此不再赞述。 另外， 本发明还提供另一系统， 如图 9所示， 该系统包括网络侧和终端。 终端包括调度信息接收、 解析、 转发单元 901和上行跳频传输单元 802， 优选 的还可以包括时隙时间分段单元 801。 网络侧包括频段按序分配单元 902和调 度信息发送单元 803。 其中：
频段按序分配单元 902与调度信息发送单元 803相连，用于按照时间段顺 序分配两个频段，其中每个频段包括至少一个资源单元，且一个频段内的资源 单元多于一个时在频域内是连续的。其中，按照时间段顺序分配频段可以隐含 的指示出跳频样式。 具体如前述方法所述。
调度信息发送单元 803用于发送分配的频段到终端。
调度信息接收、解析、转发单元 901分别与调度信息发送单元 803和上行 跳频传输单元 802相连， 用于接收发来的 RU分配信息、跳频所使用的第一频 段和第二频段， 并从 RU分配信息中解析出跳频样式， 并将分配的 RU、 跳频 所使用的第一频段和第二频段、及解析出的跳频样式转发到上行跳频传输单元 鼠
上行跳频传输单元 802 用于根据跳频样式在预先划分的第一时间段内分 配的一个频段上传输后， 在预先划分的第二时间段跳到分配的另一频段上传 输。
利用该系统实现上行跳频传输的方法与前述方法类似， 在此不再赞述。 以下介绍本发明中的一种实现上行跳频传输的终端。图 10示出了该终端。 该终端对应于前述介绍第一个系统中的终端部分。即该终端包括调度信息接收 转发单元 802和上行跳频传输单元 803 , 优选的还可以包括时隙时间分段单元
801。 其中：
时隙时间分段单元 801与上行跳频传输单元 803相连，用于预先将时隙从 时间上划分为第一时间段和第二时间段。
调度信息接收转发单元 802 用于接收并转发分配的频段和跳频样式到上 行跳频传输单元 803。 单元 802相连，用于根据跳频样式在预先划分的第一时间段内分配的一个频段 上传输后， 在第预先划分的二时间段跳到分配的另一频段上传输。
以下介绍本发明中的实现上行跳频传输的另一终端。图 11示出了该终端。 该终端对应于前述介绍第二个系统中的终端部分。 即终端包括调度信息接收、 解析、 转发单元 901和上行跳频传输单元 802， 优选的还可以包括时隙时间分 段单元 801。 其中：
时隙时间分段单元 801与上行跳频传输单元 803相连，用于预先将时隙从 时间上划分为第一时间段和第二时间段。
调度信息接收、解析、转发单元 901分别与调度信息发送单元 803和上行 跳频传输单元 802相连， 用于接收发来的频段， 并从两个频段的时间段顺序中 解析出跳频样式，并将分配的频段和解析出的跳频样式转发到上行跳频传输单 元 802。
上行跳频传输单元 803分别与时隙时间分段单元 801和调度信息接收、解 析、转发单元 901相连， 用于根据跳频样式在预先划分的第一时间段内在分配 的一个频段上传输后 , 在预先划分的第二时间段跳到分配的另一频段上传输。
由以上实施例可见，本发明预先将时隙从时间上划分为第一时间段和第二 时间段， 分配两段 RU到跳频所使用的两个频段， 并将该分配频段和跳频样式 通知给终端，终端根据跳频样式在预先划分的第一时间段内在分配的一个频段 上传输后， 在预先划分的第二时间段跳到分配的另一频段上传输， 实现了 Alternative Frame Structure系统一个 TTI内的跳频，从而获得了频率分集增益。 当然，本发明实施例对时隙的划分并不限于此，在对时隙预先划分时还可以划 分为多段（可以根据具体情况来划分， 比如可以划分为三个时间段、 四个时间 在此不再详细的描述。
虽然通过实施例描绘了本发明，本领域普通技术人员知道，本发明有许多 变形和变化而不脱离本发明的精神，希望所附的权利要求包括这些变形和变化 而不脱离本发明的精神。

Claims

权 利 要 求
1、一种实现上行跳频传输的方法，适用于具有时隙化帧结构的通信系统， 其特征在于， 包括：
接收网络侧分配的频段和跳频样式；
根据所述跳频样式在预先划分的第一时间段内分配的一个频段上进行上 行传输后， 在预先划分的第二时间段跳到分配的另一频段上进行上行传输。
2、 如权利要求 1所述的方法， 其特征在于， 所述方法还包括： 终端预先 将时隙从时间上划分为第一时间段和第二时间段。
3、 如权利要求 1或 2所述的方法， 其特征在于， 所述方法还包括： 网络侧为终端分配两个频段及跳频样式， 每个频段包括至少一个资源单 元， 所述一个频段内的资源单元多于一个时在频域内是连续的；
通知终端分配的所述频段和跳频样式。
4、 如权利要求 2所述的方法， 若所述的帧结构为长期演进方案中的代用 帧结构，其特征在于， 所述将时隙从时间上划分为第一时间段和第二时间段由 以下方式实现：
将时隙内第四长块及其之前的部分划分为第一时间段，第四长块之后的部 分划分为第二时间段。
5、 如权利要求 3所述的方法， 其特征在于， 所述通知终端分配的频段由 以下方式实现：
采用比特信息映射表指示分配的两个频段包含的资源单元，并将该比特信 息映射表通知给终端。
6、 如权利要求 3所述的方法， 其特征在于， 所述通知终端跳频样式由以 下方式实现：
采用一个比特的信息表示由低频段跳到高频段和由高频段跳到低频段； 将该比特信息通知给终端。
7、 如权利要求 3所述的方法， 其特征在于， 所述通知终端分配的频段和 跳频样式由以下方式实现： 通知终端在第一时间段所使用的频段中资源单元的起止编号和第二时间 段所使用的频段中资源单元的起止编号。
8、 如权利要求 3所述的方法， 其特征在于， 所述通知终端分配的频段和 跳频样式由以下方式实现：
通知终端在第一时间段的所使用的频度中资源单元的起始编号和数目，及 第二时间段所使用的频段中资源单元的起始编号和数目。
9、 如权利要求 1所述的方法， 其特征在于， 所述终端在预先划分的第一 时间段内分配的一个频段上进行上行传输后，在预先划分的第二时间段跳到分 配的另一频段上进行上行传输还包括：
在预先划分的第一时间段和第二时间段内，所述终端在该终端所对应的空 闲频段的短块上传输该终端的上行参考符号。
10、如权利要求 9所述的方法， 其特征在于， 所述在该终端所对应的空闲 频段的短块上传输所述终端的上行参考符号还包括：
所述终端的上行参考符号与另一终端的上行参考符号复用在所述短块上。
11、 如权利要求 9或 10所述的方法， 其特征在于， 所述两个频段在频域 内相邻。
12、 一种实现上行跳频传输的系统， 其特征在于， 包括网络侧和终端， 终 端包括调度信息接收转发单元和上行跳频传输单元；网络侧包括频段统一分配 单元， 跳频样式分配单元和调度信息发送单元； 其中，
所述频段统一分配单元， 用于分配两个频段，其中每个频段包括至少一个 资源单元， 且一个频段内的资源单元多于一个时在频域内是连续的；
所述跳频样式分配单元， 用于分配跳频样式；
所述调度信息发送单元， 用于发送分配频段和跳频样式到终端； 所述调度信息接收转发单元，用于接收并转发分配的频段和跳频样式到上 行跳频传输单元；
所述上行跳频传输单元，用于^^据跳频样式在预先划分的第一时间段内分 配的一个频段上传输后 , 在预先划分的第二时间段跳到分配的另一频段上传 输。
13、 如权利要求 12所述的方法， 其特征在于， 所述终端还包括： 时隙时 间分段单元 , 用于预先将时隙从时间上划分为第一时间段和第二时间段。
14、 一种实现上行跳频传输的终端， 其特征在于， 包括调度信息接收转发 单元和上行跳频传输单元， 其中：
所述调度信息接收转发单元，用于接收并转发分配的频段和跳频样式到上 行跳频传输单元；
所述上行跳频传输单元，用于^^据跳频样式在预先划分的第一时间段内在 分配的一个频段上传输后 ,在预先划分的第二时间段跳到分配的另一频段上传 输。
15、 如权利要求 14所述的方法， 其特征在于， 所述终端还包括： 时隙时 间分段单元， 用于预先将时隙从时间上划分为第一时间段和第二时间段。
16、 一种实现上行跳频传输的系统， 其特征在于， 包括网络侧和终端， 终 端包括调度信息接收、 解析、 转发单元和上行跳频传输单元； 网络侧包括频段 按序分配单元和调度信息发送单元； 其中，
所述时隙时间分段单元，用于将一个时隙从时间上划分为第一时间段和第 二时间段；
所述频段按序分配单元， 用于按照时间段顺序分配两个频段，其中每个频 段包括至少一个资源单元，且一个频段内的资源单元多于一个时在频域内是连 续的；
所述调度信息发送单元， 用于发送分配的频段到终端；
所述调度信息接收、 解析、 转发单元， 用于接收发来的频段， 并从两个频 段的时间段顺序中解析出跳频样式 ,并将分配的频段和解析出的跳频样式转发 到上行跳频传输单元；
所述上行跳频传输单元，用于^^据跳频样式在预先划分的第一时间段内分 配的一个频段上传输后， 在预先划分的第二时间段跳到分配的另一频段上传 输。
17、 如权利要求 16所述的方法， 其特征在于， 所述终端还包括： 时隙时 间分段单元 , 用于预先将时隙从时间上划分为第一时间段和第二时间段。
18、 一种实现上行跳频传输的终端， 其特征在于， 包括调度信息接收、 解 析、 转发单元和上行跳频传输单元， 其中，
所述调度信息接收、 解析、 转发单元， 用于接收发来的频段， 并从两个频 段的时间段顺序中解析出跳频样式，并将分配的频段和解析出的跳频样式转发 到上行跳频传输单元；
所述上行跳频传输单元，用于^^据跳频样式在预先划分的第一时间段内分 配的一个频段上传输后， 在预先划分的第二时间段跳到分配的另一频段上传 输。
19、 如权利要求 18所述的方法， 其特征在于， 所述终端还包括： 时隙时 间分段单元 , 用于预先将时隙从时间上划分为第一时间段和第二时间段。
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2437401A4 (en) * 2009-05-29 2016-10-26 Sun Patent Trust WIRELESS COMMUNICATION DEVICE AND FREQUENCY HOPPING METHOD THEREFOR
US20220276642A1 (en) * 2020-01-27 2022-09-01 Mitsubishi Electric Corporation Allocation device, learning device, inference device, allocation method, and non-transitory computer readable medium

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101384065B (zh) * 2007-09-07 2012-02-29 中兴通讯股份有限公司 一种资源跳频分配方法
US9246541B2 (en) * 2008-02-01 2016-01-26 Qualcomm Incorporated UTRAN enhancements for the support of inter-cell interference cancellation
CN101378290B (zh) 2008-09-23 2013-02-27 中兴通讯股份有限公司 信号发送控制方法和装置
US20100128690A1 (en) * 2008-11-26 2010-05-27 Futurewei Technologies, Inc. Method and Apparatus for Partitioning a Resource in a Wireless Communication System
CN101777940B (zh) * 2009-01-12 2013-08-14 华为技术有限公司 上行信息的传输方法、装置及系统
US9402193B2 (en) * 2009-03-19 2016-07-26 Qualcomm Incorporated Systems, apparatus and methods for interference management in wireless networks
CN101800572B (zh) * 2010-01-04 2013-06-26 新邮通信设备有限公司 一种传输上行参考信号的方法及系统和用户设备
KR101032392B1 (ko) * 2011-03-08 2011-05-03 삼성탈레스 주식회사 주파수 도약 통신 시스템의 홉 주파수 할당 장치 및 방법
CN102158252B (zh) * 2011-04-19 2013-07-10 电信科学技术研究院 一种配置和确定上行循环移位跳频的方法、系统及设备
US9485678B2 (en) * 2013-03-11 2016-11-01 Qualcomm Incorporated Effective utilization of cyclic prefix in OFDM systems under benign channel conditions
CN104660302B (zh) * 2015-02-11 2017-03-15 北京科技大学 基于bitmap的协商自适应跳频方法
CN107534896B (zh) * 2015-05-14 2021-09-14 有线电视实验室公司 对话前监听系统中的混合自动重传请求(harq)
KR102711589B1 (ko) 2015-07-01 2024-09-27 파나소닉 아이피 매니지먼트 가부시키가이샤 자원 할당 정보의 전송 장치 및 전송 방법
US10608998B2 (en) 2016-04-29 2020-03-31 Texas Instruments Incorporated Enhanced network security using packet fragments
US10812135B2 (en) 2017-02-28 2020-10-20 Texas Instruments Incorporated Independent sequence processing to facilitate security between nodes in wireless networks
WO2018187947A1 (zh) * 2017-04-11 2018-10-18 华为技术有限公司 传输数据的方法、网络设备和终端设备
CN110463075B (zh) * 2017-04-14 2021-05-11 华为技术有限公司 一种通信方法、帧结构及设备
CN108112076B (zh) * 2017-05-05 2023-11-21 中兴通讯股份有限公司 配置上行信号的方法及装置
US11700107B2 (en) * 2017-11-09 2023-07-11 Qualcomm Incorporated Duplexing modes based on power configurations for transmissions
US12022457B2 (en) * 2021-05-10 2024-06-25 Qualcomm Incorporated Uplink pre-compensation in wireless communications systems

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001026236A1 (en) 1999-10-01 2001-04-12 Telefonaktiebolaget Lm Ericsson (Publ) A method and an arrangement relating to mobile radio systems with the possibility of switching channel coding schemes
US20040013166A1 (en) * 2002-07-19 2004-01-22 Goodings Chris J. Hybrid frame structure for wireless communications
US20040037251A1 (en) * 2002-08-21 2004-02-26 Ofer Shneyour Method and system for transmitting and receiving data in a TDMA frequency hopping system utilizing frequency diversity
US20040228267A1 (en) 2003-05-12 2004-11-18 Avneesh Agrawal Fast frequency hopping with a code division multiplexed pilot in an OFDMA system
US20060176859A1 (en) * 2005-02-04 2006-08-10 Samsung Electronics Co., Ltd. Method and apparatus for transmitting/receiving data in a cellular communication system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1736115A (zh) * 2002-03-14 2006-02-15 美商内数位科技公司 在第三代无线通信系统的上行链路中执行通话允许控制的方法和系统
JP4628150B2 (ja) * 2004-03-29 2011-02-09 パナソニック株式会社 通信装置及び通信方法
JP4152370B2 (ja) * 2004-09-28 2008-09-17 三洋電機株式会社 ダイバーシチ方法および装置
JP4509872B2 (ja) * 2005-06-14 2010-07-21 株式会社エヌ・ティ・ティ・ドコモ 基地局、移動局及び方法
US8077652B2 (en) * 2006-10-03 2011-12-13 Viasat, Inc. MF-TDMA frequency hopping

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001026236A1 (en) 1999-10-01 2001-04-12 Telefonaktiebolaget Lm Ericsson (Publ) A method and an arrangement relating to mobile radio systems with the possibility of switching channel coding schemes
US20040013166A1 (en) * 2002-07-19 2004-01-22 Goodings Chris J. Hybrid frame structure for wireless communications
US20040037251A1 (en) * 2002-08-21 2004-02-26 Ofer Shneyour Method and system for transmitting and receiving data in a TDMA frequency hopping system utilizing frequency diversity
US20040228267A1 (en) 2003-05-12 2004-11-18 Avneesh Agrawal Fast frequency hopping with a code division multiplexed pilot in an OFDMA system
US20060176859A1 (en) * 2005-02-04 2006-08-10 Samsung Electronics Co., Ltd. Method and apparatus for transmitting/receiving data in a cellular communication system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2124370A4

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2437401A4 (en) * 2009-05-29 2016-10-26 Sun Patent Trust WIRELESS COMMUNICATION DEVICE AND FREQUENCY HOPPING METHOD THEREFOR
US20220276642A1 (en) * 2020-01-27 2022-09-01 Mitsubishi Electric Corporation Allocation device, learning device, inference device, allocation method, and non-transitory computer readable medium

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US8165151B2 (en) 2012-04-24
EP2124370B1 (en) 2014-12-10
KR20100014960A (ko) 2010-02-11
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