Method and device for uplink signals transmission and channel estimation in wireless access network

Method and device for uplink signals transmission and channel estimation in wireless access network

  • CN 102,017,441 A
  • Filed: 09/05/2008
  • Published: 04/13/2011
  • Est. Priority Date: 09/05/2008
  • Status: Active Application
First Claim
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1. Claimsa kind of method for being used to send upstream data to access device side in the network equipment of the Radio Access Network based on multicarrier, wherein, the network equipment has many transmitting antennas, and this method comprises the following steps:

  • M. the multiplexing symbol through subcarrier-modulated is sent via many transmitting antennas, wherein, t easet ofasubcarriers used at least two transmitting antennas are different.2. according to the method described in claim 1, it is characterised in that have at least two-way different in the multiplexing symbol through subcarrier-modulated.3. method according to claim 1 or 2, it is characterised in that also include before the Bu Sudden m:

    Close the corresponding relation between the multiple subcarrier determined by information and many just transmitting antennas;

    The step m includes:

    - based on the corresponding relation between identified the multiple subcarrier and many transmitting antennas, send the multiplexing symbol through subcarrier-modulated via many transmitting antennas.4. method according to claim 3, it is characterised in that the step a also includes:

    Al. the quality of uplink signal relevant information of the up opposite equip. from the network equipment is obtained, it is used to indicating the signal quality of upward signal that each transmitting antenna of the network equipment sent at the up opposite equip.;

    A2. the quality of uplink signal relevant information is based on, the corresponding relation between the multiple subcarrier and many transmitting antennas is determined.5. method according to any one of claim 1 to 4, it is characterized in that, the Radio Access Network is based on OFDM, wherein, correspond to one or more OFDM resource units per t easet ofasubcarriers used in the blunt transmitting antennas of ^ ^.6. method according to claim 5, it is characterised in that t easet ofasubcarriers used in different transmitting antennas correspond to multiple OFDM resource units spaced on frequency domain.7. method according to any one of claim 1 to 6, it is characterised in that pilot frequency design used in two transmitting antennas of wherein at least is identical.8. method according to any one of claim 1 to 7, it is characterised in that pilot frequency design used in many transmitting antennas is that the network equipment is special.9. method according to any one of claim 1 to 8, it is characterised in that the network equipment includes mobile terminal, the up opposite equip. includes relay station and base station.10. method according to any one of claim 1 to 9, it is characterised in that the network equipment includes relay station, the up opposite equip. includes relay station and base station.11. the method for being used to carry out channel estimation in a kind of up opposite equip. of network equipment in Radio Access Network, wherein, comprise the following steps:

    A. the pilot frequency design based on many transmitting antennas for being pre-assigned to the network equipment, pilot signal is parsed in the upward signal from the network equipment received;

    B. according to the pilot signal parsed, channel estimation is carried out to the up channel between the network equipment and the up opposite equip., resulting channel estimation results are by for the parsing to follow-up signal.12. a kind of the first dispensing device for being used to send upstream data to access device side in the network equipment of the Radio Access Network based on multicarrier, wherein, the network equipment has many transmitting antennas, and first dispensing device includes:

    Second dispensing device, for sending the multiplexing symbol through subcarrier-modulated via many transmitting antennas, wherein, t easet ofasubcarriers used at least two transmitting antennas are different.13. the first dispensing device according to claim 12, it is characterised in that have at least two-way different in the multiplexing symbol through subcarrier-modulated.14. the first dispensing device according to claim 12 or 13, it is characterised in that also include:

    '"'"' first obtains device, for obtaining according to the corresponding relation between the network equipment and its up opposite equip.;

    Second dispensing device is additionally operable to, based on identified the multiple subcarrier and described manyCorresponding relation between transmitting antenna, the multiplexing symbol through subcarrier-modulated is sent via many transmitting antennas.15. the first dispensing device according to claim 14, it is characterised in that the first acquisition device also includes:

    Second obtains device, the quality of uplink signal relevant information for obtaining the up opposite equip. from the network equipment, and it is used to indicating the signal quality of upward signal that each transmitting antenna of the network equipment sent at the up opposite equip.;

    Determining device, for based on the quality of uplink signal relevant information, determining the corresponding relation between the multiple subcarrier and many transmitting antennas.16. the first dispensing device according to any one of claim 12 to 15, it is characterized in that, the Radio Access Network is based on OFDM, wherein, t easet ofasubcarriers used in transmitting antenna are stated per ^ jins corresponding to one or more OFDM resource units.17. the first dispensing device according to claim 16, it is characterised in that t easet ofasubcarriers used in different transmitting antennas correspond to multiple OFDM resource units spaced on frequency domain.18. the first dispensing device according to any one of claim 12 to 17, it is characterised in that pilot frequency design used in two transmitting antennas of wherein at least is identical.19. the first dispensing device according to any one of claim 12 to 18, it is characterised in that pilot frequency design used in many transmitting antennas is that the network equipment is special.20. the first dispensing device according to any one of claim 12 to 19, it is characterised in that the network equipment includes mobile terminal, the up opposite equip. includes relay station and base station.21. the first dispensing device according to any one of claim 12 to 20, it is characterised in that the network equipment includes relay station, the up opposite equip. includes relay station and base station.Device, wherein, including:

    '"'"'Pilot tone resolver, based on the pilot frequency design for many transmitting antennas for being pre-assigned to the network equipment, pilot signal is parsed in the upward signal from the network equipment received;

    Processing unit, for according to the pilot signal parsed, carrying out channel estimation to the up channel between many transmitting antennas and the up opposite equip. of the network equipment, the result of the channel estimation is by for the parsing to follow-up signal.23. it is a kind of based on multicarrier Wu the network equipment in line Jie Ru Wang Network, it is characterised in that the network equipment has many transmitting antennas, and including the first dispensing device according to any one of claim 12 to 21.24. a kind of up opposite equip. Wu the network equipment in line Jie Ru Wang Network based on multicarrier, it is characterised in that including processing unit according to claim 22.25. a kind of method in the Radio Access Network based on multicarrier for carrying out uplink communication between the up opposite equip. of multiple network equipments together, wherein, the multiple network equipment includes one or more multiple antennas network equipments, it is characterized in that, at least one described multiple antennas network equipment sends the multiplexing symbol through subcarrier-modulated via its many transmitting antenna configured, wherein, t easet ofasubcarriers used at least two blunt transmitting antennas of ability are different.26. method according to claim 25, it is characterised in that pilot frequency design used in wherein each network equipment is different from pilot frequency design used in other any network equipments.27. the method according to claim 25 or 26, it is characterised in that at least two transmitting antennas on the wherein at least one multiple antennas network equipment share a pilot frequency design.

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