CN103095442A - Sounding reference signal configuration method and device - Google Patents
Sounding reference signal configuration method and device Download PDFInfo
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- CN103095442A CN103095442A CN2011103377379A CN201110337737A CN103095442A CN 103095442 A CN103095442 A CN 103095442A CN 2011103377379 A CN2011103377379 A CN 2011103377379A CN 201110337737 A CN201110337737 A CN 201110337737A CN 103095442 A CN103095442 A CN 103095442A
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- 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
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
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- 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
- H04L5/0026—Division using four or more dimensions
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- 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
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0094—Indication of how sub-channels of the path are allocated
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Abstract
The invention discloses a sounding reference signal configuration method and a device. The sounding reference signal configuration method includes the steps: a network side determines that a receiving side is used for sending configuration information of a sounding reference signal (SRS) and informing the receiving side. The receiving side configures the SRS according to the received SRS configuration information and sends the SRS which is after being configured to the network side. A symbolic number and a position which are used for sending of the SRS in each sub-frame, and at least one of an operator control command (OCC) enable identification, the length of an OCC of the SRS, the OCC of the SRS, and an OCC mapping mode are additionally arranged in SRS configuration information, time/frequency/code sources which are used for sending of the SRS can be added in the SRS configuration information, and the problem that capacity of the SRS in a coordinated multiple points (CoMP) scene 4 is not enough is effectively resolved.
Description
Technical field
The present invention relates to the technology to detection reference signal (SRS, Sounding Reference Signal) configuration, relate in particular to a kind of detection reference signal collocation method and device.
Background technology
senior Long Term Evolution (LTE-A, Long Term Evolution-Advanced) provisional capital up and down of system is with OFDM (OFDM, Orthogonal Frequency Division Multiplexing) be the frequency division systems of basic multiple access multiplexing mode, with traditional with code division multiple access (CDMA, Code Division Multiple Access) be the wireless communication system difference of basic multiple access multiplexing mode, the LTE-A system does not have processing gain, the residential quarter is inner because complete frequency division quadrature, so almost there is no interference problem, but the interference at cell edge is processed relatively thorny.Multipoint cooperative (CoMP, Coordinated Multiple Point) transmission technology is to utilize the transmitting antenna cooperation transmission of a plurality of residential quarters to realize high-quality and the transmitting of cell edge place Radio Link, can effectively solve the cell edge interference problem.
Third generation partner program (3GPP, 3rd Generation Partnership Project) is with the important technology of CoMP technology as LTE-A.And passed through the research scene of CoMP is divided into four kinds in 3GPP RAN1 #63b: scene 1 is homogenous networks intra-site CoMP scene; Scene 2 is homogenous networks inter-site CoMP scenes; Scene 3 is heterogeneous network macro+RRH CoMP scenes, and macro and remote radio (RRH, Remote Radio Head) have different cell ID (Cell ID, Cell Identity); Scene 4 is heterogeneous network macro+RRH CoMP scenes, and macro and RRH have identical Cell ID.
Feedback technique with the CoMP system in 3GPP TS 36.814 is divided three classes, utilize detection reference signal (SRS, Sounding Reference Signal) carrying out obtaining channel information based on channel reciprocity is wherein a kind of important feedback technique of time division duplex (TDD, Time Division Duplex) CoMP system.SRS is also a kind of important channel sounding techniques in up CoMP system in addition.
For the SRS off-capacity problem of bringing due to many antennas, introduced detection reference signal (A-SRS aperiodic in R10, but A-SRS has also just improved the resource utilization of SRS, does not improve in essence the SRS capacity Aperiodic-Sounding Reference Signal).
In CoMP scene 4, be provided with a plurality of Microcells (being residential quarter under RRH) in macrocell (macro cell), the focus that increases macrocell covers and the blind spot covering power, makes macrocell can support more user to communicate with respect to traditional homogenous networks residential quarter.But because all RRH under macrocell and its coverage have identical Cell ID, namely it still uses a SRS basic sequence group with the same of traditional homogenous networks residential quarter, therefore causes existing under this scene SRS off-capacity problem.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of detection reference signal collocation method and device, can by the achieve a butt joint OCC configuration of the SRS that receives side of high-level signaling or physical layer signaling, solve the problem of the deficiency of SRS capacity.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of detection reference signal collocation method comprises:
Network side determines that receiver side is used to send the configuration information of SRS, and the notice receiver side.
Preferably, described configuration information comprises the mapping mode of SRS and at least one of following information:
The quadrature mask OCC of SRS enables to identify, the OCC length of SRS, the OCC of SRS and the OCC mapping mode of SRS.
Preferably, network side determines that the mapping mode of SRS is:
Described network side determines that receiver side is used for sending symbolic number and the character position of SRS in each subframe;
Network side determines that the OCC mapping mode of SRS is: the OCC mapping position of determining SRS according to symbolic number and the character position of described SRS.
Preferably, described network side determines that described UE for the symbolic number and the character position that send SRS is in each subframe:
Described network side determines that receiver side is 1 for the symbolic number that sends SRS in each subframe, described character position is the 1st symbol of the 1st time slot in subframe, or the 7th symbol on the 1st time slot in subframe, or the 1st symbol of the 2nd time slot in each subframe, or the second-to-last symbol of the 2nd time slot in each subframe;
Perhaps, described network side determines that receiver side is 2 for the symbolic number that sends SRS in each subframe, described character position is the 1st symbol of the 1st time slot in each subframe and the 7th symbol of the 2nd time slot, or the 7th symbol of the 1st time slot and the 7th symbol of the 2nd time slot in each subframe, or the 7th symbol of the 1st time slot and the 7th symbol of the 2nd time slot in each subframe, or the 1st symbol and the 7th symbol of the 2nd time slot in each subframe.
Preferably, network side determines that the OCC mapping mode of SRS is time domain mapping or frequency domain mapping;
The OCC mapping position of determining SRS according to symbolic number and the character position of described SRS is: the OCC mapping mode of SRS is time domain when mapping, OCC be mapped between 2 SRS of each subframe or 2 SRS of every 2 subframes of doing the time domain binding or 4 SRS on;
The OCC mapping mode of SRS is frequency domain when mapping, and OCC is mapped on 2 the adjacent available subcarriers or 4 adjacent available subcarriers of carrying SRS of each subframe.
Preferably, network side determines that OCC length is that 2, OCC is [+1 ,+1] or [+1 ,-1];
Perhaps, network side determines that OCC length is that 4, OCC is [+1 ,+1 ,+1 ,+1] or [+1 ,-1 ,+1 ,-1] or [+1 ,+1 ,-1 ,-1] or [+1 ,-1 ,-1 ,+1].
Preferably, described network side is notified receiver side by high-level signaling or physical layer signaling with described configuration information.
Preferably, described method also comprises:
Receiver side configures SRS according to the configuration information of received SRS according to described configuration information, and the SRS signal after configuring to the network side transmission.
A kind of detection reference signal inking device comprises determining unit and notification unit, wherein:
Determining unit is used for determining that receiver side is used for sending the configuration information of SRS;
Notification unit is used for described configuration information notice receiver side.
Preferably, described configuration information comprises the mapping mode of SRS and at least one of following information:
The OCC of SRS enables to identify, the OCC length of SRS, the OCC of SRS and the OCC mapping mode of SRS.
Preferably, described determining unit is further used for, and determines that receiver side is used for sending symbolic number and the character position of SRS in each subframe; And, the OCC mapping position of determining SRS according to symbolic number and the character position of described SRS.
Preferably, described determining unit is further used for, determine that receiver side is 1 for the symbolic number that sends SRS in each subframe, described character position is the 1st symbol of the 1st time slot in subframe, or the 7th symbol on the 1st time slot in subframe, or the 1st symbol of the 2nd time slot in each subframe, or the second-to-last symbol of the 2nd time slot in each subframe;
Perhaps, determine that receiver side is 2 for the symbolic number that sends SRS in each subframe, described character position is the 1st symbol of the 1st time slot in each subframe and the 7th symbol of the 2nd time slot, or the 7th symbol of the 1st time slot and the 7th symbol of the 2nd time slot in each subframe, or the 7th symbol of the 1st time slot and the 7th symbol of the 2nd time slot in each subframe, or the 1st symbol and the 7th symbol of the 2nd time slot in each subframe.
Preferably, described determining unit is further used for, and the OCC mapping mode of determining SRS is time domain mapping or frequency domain mapping;
And the OCC mapping mode of SRS is time domain when mapping, OCC be mapped between 2 SRS of each subframe or 2 SRS of every 2 subframes of doing the time domain binding or 4 SRS on; The OCC mapping mode of SRS is frequency domain when mapping, and OCC is mapped on 2 the adjacent available subcarriers or 4 adjacent available subcarriers of carrying SRS of each subframe.
Preferably, described determining unit is further used for, and determines that OCC length is that 2, OCC is [+1 ,+1] or [+1 ,-1];
Perhaps, determine that OCC length is that 4, OCC is [+1 ,+1 ,+1 ,+1] or [+1 ,-1 ,+1 ,-1] or [+1 ,+1 ,-1 ,-1] or [+1 ,-1 ,-1 ,+1].
Preferably, described device also comprises receiving element, dispensing unit and transmitting element; Wherein:
Receiving element is used for receiving the SRS configuration information;
Dispensing unit is used for according to described configuration information configuration SRS;
Transmitting element is used for sending the SRS signal after configuring.
In the present invention, network side determines that configuration information that receiver side is used for sending SRS comprises that the OCC of the mapping mode of SRS and SRS enables to identify, the OCC mapping mode of the OCC of the OCC length of SRS, SRS and SRS at least one, and with determined configuration information notice receiver side, receiver side is by received configuration information configuration SRS and transmission.Be used for by setting up symbolic number and the position that SRS sends in each subframe in the SRS configuration information, and OCC enables to identify, the OCC mapping mode of the OCC of the OCC length of SRS, SRS and SRS at least one, increased can be used in that SRS sends the time/frequently/code resource, efficiently solve the problem of the SRS off-capacity in CoMP scene 4.
Description of drawings
Fig. 1 is the multiplexing schematic diagram of SRS between the corresponding user of the embodiment of the present invention 1.
Fig. 2 is the multiplexing schematic diagram of SRS between the corresponding user of the embodiment of the present invention 2.
Fig. 3 is the multiplexing schematic diagram of SRS between the corresponding user of the embodiment of the present invention 3.
Fig. 4 is the multiplexing schematic diagram of SRS between the corresponding user of the embodiment of the present invention 4.
Fig. 5 is the multiplexing schematic diagram of SRS between the corresponding user of the embodiment of the present invention 5;
Fig. 6 is the composition structural representation of embodiment of the present invention detection reference signal inking device.
Embodiment
Basic thought of the present invention is: network side determines that configuration information that receiver side is used for sending SRS comprises that the OCC of the mapping mode of SRS and SRS enables to identify, the OCC mapping mode of the OCC of the OCC length of SRS, SRS and SRS at least one, and with determined configuration information notice receiver side, receiver side is by received configuration information configuration SRS and transmission.
For making purpose of the present invention, technical scheme and advantage are clearer, and by the following examples and with reference to accompanying drawing, the present invention is described in more detail.
In the present invention, determine that by network side receiver side is used to send the configuration information of SRS, and notify it to can be used for sending symbolic number and the character position of SRS by high-level signaling or physical layer signaling in subframe to receiver side.
Concrete, it is 1 or 2 that network side notifies to receiver side the symbolic number that can be used for receiver side transmission SRS in each subframe by 1 bit, the symbolic number that for example can be used for receiver side transmission SRS in 0 each subframe of expression is 1, and the symbolic number that can be used for receiver side transmission SRS in 1 each subframe of expression is 2.Wherein, subframe refers to the specific subframe of user.
Network side is notified to receiver side by 2 bits and be can be used for the character position that receiver side sends SRS in each subframe.For example , 00 represents the position of each sub-frame on the first slot of the first symbol ( if each sub-frame for transmitting the SRS in the receiving side a number of symbols ) or for each of the first sub-frame one slot of the first symbol and the second slot in the seventh symbol ( if each sub-frame for transmitting the SRS in the receiving side 2 number of symbols ), the 01 represents the position of each sub-frame on the first slot of the first seven symbols ( each sub- frame when the reception side can be used for SRS transmission symbol number is 1 ) or for the first time slot of the first seven symbols and two slots on the seventh symbol ( if each sub-frame for transmitting the SRS in the receiving side digital symbols 2 ), the 10 indicating the position of each sub-frame on the second slot first symbol ( when each sub-frame can be used for SRS transmission reception side is 1 when the number of symbols ) for each sub- frame on the second slot of the first symbol and the second symbol 7 ( when each sub-frame can be used for receiving side transmits the SRS symbol number 2 ), the 11 represents the position of each sub-frame of the second slot penultimate symbol ( if each sub-frame for transmitting the SRS in the receiving side the number of symbols 1 ) or as a second slot of the last 2 symbols ( each sub- frame when the reception side can be used for SRS transmission time symbol number 2 ) .
Network side is 2 or 4 by 1 bit notice receiver side OCC length, and for example 0 expression OCC length is that 2,1 expression OCC length are 4.
Network side is [+1 ,+1] or [+1 ,-1] or [+1 ,+1 by 2 bit notice receiver side OCC, + 1 ,+1] or [+1 ,-1 ,+1,-1] or [+1 ,+1 ,-1 ,-1] or [+1,-1 ,-1 ,+1], for example 00 expression OCC is [+1 ,+1] (when OCC length is 2) or [+1 ,+1, + 1 ,+1] (when OCC length is 4), 01 expression OCC is [+1,-1] (when OCC length is 2) or [+1 ,-1 ,+1,-1] (when OCC length is 4), 10 expression OCC are [+1 ,+1,-1 ,-1], 11 expression OCC are [+1,-1 ,-1 ,+1].(power 7)
Network side is time domain mapping or frequency domain mapping by 1 bit notice OCC mapping mode, and for example 0 expression OCC mapping mode is the time domain mapping, and 1 expression OCC mapping mode is the frequency domain mapping.
When the OCC mapping mode is time domain when mapping, OCC is mapped on 2 SRS symbols (when OCC length is 2) or 4 SRS symbols (when OCC length is 4) of 2 SRS intersymbols of each subframe or every 2 subframes of doing the time domain binding successively.Wherein corresponding every 2 or 4 of same subcarrier are used for the identical SRS sequence symbol of mapping on the SRS symbol of time domain OCC mapping.2 SRS symbols or 4 SRS symbols of using time domain OCC can only be used for same user.
When the OCC mapping mode is the frequency domain mapping, OCC is mapped in can be used on symbol that receiver side sends SRS on every 2 adjacent available subcarriers (when OCC length is 2) or every 4 adjacent available subcarriers (when OCC length is 4) of each subframe successively, and wherein each is used on SRS symbol of frequency domain OCC mapping the identical SRS sequence symbol of mapping on every 2 or every 4 adjacent available subcarriers.
Below by concrete example, further illustrate the essence of technical solution of the present invention.Above-mentioned specific implementation goes in arbitrary embodiment, and identical content, give unnecessary details in each embodiment no longer one by one with it.
Network side is notified specific (ue-specific) subframe of specific (the cell-specific)/user in its residential quarter and frequency spectrum comb information in the existing mode of R10 to user 1, and to its SRS number and the position that can use in the ue-specific subframe of this user notification, specific implementation is as follows by high-level signaling or physical layer signaling:
Network side is subframe and the frequency spectrum comb of user's 2 configurations cell-specific identical with user 1 and ue-specific, and notify its SRS number and the position that can use by high-level signaling or physical layer signaling to this user 2 in the ue-specific subframe, specific as follows:
User 2 can be used for himself sending SRS in each subframe symbolic number is 1, is positioned on the 1st symbol of the 1st symbol of the 1st time slot of each subframe or the 7th symbol or the 2nd time slot or on the second-to-last symbol of the 2nd time slot.
After user 1 receives the configuration information of network side, send SRS to network side on the 7th symbol of the 2nd time slot of its subframe.
After user 2 receives the configuration information of network side, send SRS to network side on the second-to-last symbol of the 1st symbol of the 1st symbol of the 1st time slot of its subframe or the 7th symbol or the 2nd time slot or the 2nd time slot.
Fig. 1 is the multiplexing schematic diagram of SRS between the corresponding user of the embodiment of the present invention 1, in figure, the oblique line grid represents to carry the Resource Unit of SRS sequence, as shown in Figure 1, mode with time division multiplexing (TDM, Time Division Multiplex) between user 1 and user 2 realizes the SRS orthogonal multiplex.
Embodiment 2
Network side is notified the subframe of its cell-specific and ue-specific in the existing mode of R10 to user 1, and enable sign/OCC length/OCC/OCC mapping mode information by high-level signaling or physical layer signaling to this user notification OCC, specific implementation is as follows:
User 2 sends SRS on last symbol on the ue-specific subframe, user 2 OCC enables, and OCC length is that 2, OCC is [+1 ,-1], and the OCC mapping mode is the frequency domain mapping.
After user 1 receives described configuration information, with the OCC ([+1 that distributes, + 1]) at frequency domain according to the order from the low frequency to the high frequency, shine upon in every two adjacent sub-carriers mapping mode once on the frequency spectrum comb that distributes, namely, with the SRS sequence at frequency domain according to the order from the low frequency to the high frequency, SRS sequence symbol of every two subcarriers mapping on the frequency spectrum that distributes comb.
After user 2 receives described configuration information, with the OCC ([+1 that distributes,-1]) at frequency domain according to the order from the low frequency to the high frequency, shine upon in every two adjacent sub-carriers mapping mode once on the frequency spectrum comb that distributes, namely, with the SRS sequence at frequency domain according to the order from the low frequency to the high frequency, SRS sequence symbol of every two subcarriers mapping on the frequency spectrum that distributes comb.
Fig. 2 is the multiplexing schematic diagram of SRS between the corresponding user of the embodiment of the present invention 2, in figure, the oblique line grid represents to carry the Resource Unit of SRS sequence, as shown in Figure 2, mode with code division multiplexing (CDM, Code Division Multiplex) between user 1 and user 2 realizes the SRS orthogonal multiplex.
Embodiment 3
Network side is notified the subframe of its cell-specific and ue-specific in the existing mode of R10 to receiver side, and by high-level signaling or physical layer signaling to its SRS number and the position that can use in the ue-specific subframe of this user notification, network side enables sign/OCC length/OCC/OCC mapping mode information by high level or physical layer signaling to this user notification OCC simultaneously, and specific implementation is as follows:
User 2 can be used for himself sending SRS in each subframe symbolic number is 2, is positioned on the 7th symbol of the 7th symbol of the 1st time slot of each subframe and the 2nd time slot; User 2 OCC enables, and OCC length is that 2, OCC is [+1 ,-1], and the OCC mapping mode is the time domain mapping.
Described user 1 and user's 2 ue-specific sub-frame configuration is identical, and the configuration of frequency spectrum comb is identical.
After user 1 receives described configuration information, the OCC ([+1 ,+1]) that distributes is mapped on two SRS symbols of same subcarrier in each subframe; According to the order from the low frequency to the high frequency, each subcarrier shines upon a SRS sequence symbol to the SRS sequence on the frequency spectrum comb that distributes at frequency domain.
After user 2 receives described configuration information, the OCC ([+1 ,-1]) that distributes is mapped on two SRS symbols of same subcarrier in each subframe; According to the order from the low frequency to the high frequency, each subcarrier shines upon a SRS sequence symbol to the SRS sequence on the frequency spectrum comb that distributes at frequency domain.
Fig. 3 is the multiplexing schematic diagram of SRS between the corresponding user of the embodiment of the present invention 3, and in figure, the oblique line grid represents to carry the Resource Unit of SRS sequence, and as shown in Figure 3, the mode with CDM between user 1 and user 2 realizes the SRS orthogonal multiplex.
Embodiment 4
Network side is notified the subframe of its cell-specific and ue-specific in the existing mode of R10 to receiver side, and by high-level signaling or physical layer signaling to its SRS number and the position that can use in the ue-specific subframe of this user notification, network side enables sign/OCC length/OCC/OCC mapping mode information by high level or physical layer signaling to this user notification OCC simultaneously, and specific implementation is as follows:
User 2 can be used for himself sending SRS in each subframe symbolic number is 2, is positioned on the 7th symbol of the 7th symbol of the 1st time slot of each subframe and the 2nd time slot; User 2 OCC enables, and OCC length is that 2, OCC is [+1 ,-1], and the OCC mapping mode is the frequency domain mapping.
Described user 1 and user's 2 ue-specific sub-frame configuration is identical, and the configuration of frequency spectrum comb is identical.
After user 1 receives described configuration information, with the OCC ([+1 that distributes, + 1]) at frequency domain according to the order from the low frequency to the high frequency, shine upon in every two adjacent sub-carriers mapping mode once on the frequency spectrum comb that distributes, namely, with the SRS sequence at frequency domain according to the order from the low frequency to the high frequency, SRS sequence symbol of every two subcarriers mapping on the frequency spectrum that distributes comb.
After user 2 receives described configuration information, with assigned OCC ([+1,-1]) at frequency domain according to the order from the low frequency to the high frequency, shine upon in every two adjacent sub-carriers mapping mode once on the frequency spectrum comb that distributes, namely, with the SRS sequence at frequency domain according to the order from the low frequency to the high frequency, SRS sequence symbol of every two subcarriers mapping on the frequency spectrum that distributes comb.
Fig. 4 is the multiplexing schematic diagram of SRS between the corresponding user of the embodiment of the present invention 4, and in figure, the oblique line grid represents to carry the Resource Unit of SRS sequence, as shown in Figure 4, between user 1 and user 2 with CDM, mode realize the SRS orthogonal multiplex.
Embodiment 5
Network side is notified the subframe of its cell-specific and ue-specific in the existing mode of R10 to receiver side, and by high-level signaling or physical layer signaling to its SRS number and the position that can use in the ue-specific subframe of this user notification, network side enables sign/OCC length/OCC/OCC mapping mode information by high level or physical layer signaling to this user notification OCC simultaneously, and specific implementation is as follows:
User 2 can be used for himself sending SRS in each subframe symbolic number is 2, is positioned on the 7th symbol of the 7th symbol of the 1st time slot of each subframe and the 2nd time slot; User 2 OCC enables, and OCC length is that 2, OCC is [+1 ,-1], and the OCC mapping mode is the frequency domain mapping.
After user 1 receives described configuration information, with assigned OCC ([+1, + 1]) at frequency domain according to the order from the low frequency to the high frequency, shine upon in every two adjacent sub-carriers mapping mode once on the frequency spectrum comb that distributes, namely, with the SRS sequence at frequency domain according to the order from the low frequency to the high frequency, SRS sequence symbol of every two subcarriers mapping on the frequency spectrum that distributes comb.
After user 2 receives described configuration information, on the frequency domain of the 1st SRS of each subframe according to the order from the low frequency to the high frequency, assigned OCC ([+1 ,-1]) is shone upon in every two adjacent sub-carriers mapping mode once on the frequency spectrum comb that distributes; On the frequency domain of the 2nd SRS of each subframe according to the order from the low frequency to the high frequency, with after assigned OCC counter-rotating ([1, + 1]) every two adjacent sub-carriers mapping mode is once shone upon on the frequency spectrum comb that distributes, namely, with the SRS sequence at frequency domain according to the order from the low frequency to the high frequency, SRS sequence symbol of every two subcarriers mapping on the frequency spectrum that distributes comb.
Fig. 5 is the multiplexing schematic diagram of SRS between the corresponding user of the embodiment of the present invention 5, and in figure, the oblique line grid represents to carry the Resource Unit of SRS sequence, and as shown in Figure 5, the mode with CDM between user 1 and user 2 realizes the SRS orthogonal multiplex.
Network side is notified the subframe of its cell-specific and ue-specific in the existing mode of R10 to receiver side, and by high-level signaling or physical layer signaling to its SRS number and the position that can use in the ue-specific subframe of this user notification, network side enables sign/OCC length/OCC/OCC mapping mode information by high level or physical layer signaling to this user notification OCC simultaneously, and specific implementation is as follows:
User 2 can be used for himself sending SRS in each subframe symbolic number is 1, is positioned on the 7th symbol of the 2nd time slot of each subframe; User 2 OCC enables, and OCC length is that 2, OCC is [+1 ,+1], and the OCC mapping mode is the frequency domain mapping.
User 3 can be used for himself sending SRS in each subframe symbolic number is 1, is positioned on the 1st symbol of the 1st time slot of each subframe; User 3 OCC enables, and OCC length is that 2, OCC is [+1 ,-1], and the OCC mapping mode is the frequency domain mapping.
User 4 can be used for himself sending SRS in each subframe symbolic number is 1, is positioned on the 7th symbol of the 2nd time slot of each subframe; User 4 OCC enables, and OCC length is that 2, OCC is [+1 ,+1], and the OCC mapping mode is the frequency domain mapping.
After user 1 receives described configuration information, with assigned OCC ([+1, + 1]) on the frequency spectrum comb that is distributing on the 1st symbol of the 1st time slot of subframe according to the order from the low frequency to the high frequency, shine upon in every two adjacent sub-carriers mapping mode once, namely, with the SRS sequence at frequency domain according to the order from the low frequency to the high frequency, SRS sequence symbol of every two subcarriers mapping on the frequency spectrum that distributes comb.
After user 2 receives described configuration information, with assigned OCC ([+1, + 1]) on the frequency spectrum comb that is distributing on the 7th symbol of the 2nd time slot of subframe according to the order from the low frequency to the high frequency, shine upon in every two adjacent sub-carriers mapping mode once, namely, with the SRS sequence at frequency domain according to the order from the low frequency to the high frequency, SRS sequence symbol of every two subcarriers mapping on the frequency spectrum that distributes comb.
After user 3 receives described configuration information, with assigned OCC ([+1,-1]) on the frequency spectrum comb that is distributing on the 1st symbol of the 1st time slot of subframe according to the order from the low frequency to the high frequency, shine upon in every two adjacent sub-carriers mapping mode once, namely, with the SRS sequence at frequency domain according to the order from the low frequency to the high frequency, SRS sequence symbol of every two subcarriers mapping on the frequency spectrum that distributes comb.
After user 4 receives described configuration information, with assigned OCC ([+1, + 1]) on the frequency spectrum comb that is distributing on the 7th symbol of the 2nd time slot of subframe according to the order from the low frequency to the high frequency, shine upon in every two adjacent sub-carriers mapping mode once, namely, with the SRS sequence at frequency domain according to the order from the low frequency to the high frequency, SRS sequence symbol of every two subcarriers mapping on the frequency spectrum that distributes comb.
Fig. 6 is the composition structural representation of embodiment of the present invention detection reference signal inking device, and as shown in Figure 6, the detection reference signal inking device of the embodiment of the present invention comprises determining unit 60 and notification unit 61, wherein:
Determining unit 60 is used for determining that receiver side is used for sending the configuration information of SRS;
Notification unit 61 is used for described configuration information notice receiver side.
Above-mentioned configuration information comprises the mapping mode of SRS and at least one of following information:
The OCC of SRS enables to identify, the OCC length of SRS, the OCC of SRS and the OCC mapping mode of SRS.
Above-mentioned determining unit 60 is further used for, and determines that receiver side is used for sending symbolic number and the character position of SRS in each subframe; And, the OCC mapping position of determining SRS according to symbolic number and the character position of described SRS.
Above-mentioned determining unit 60 is further used for, determine that receiver side is 1 for the symbolic number that sends SRS in each subframe, described character position is the 1st symbol of the 1st time slot in subframe, or the 7th symbol on the 1st time slot in subframe, or the 1st symbol of the 2nd time slot in each subframe, or the second-to-last symbol of the 2nd time slot in each subframe;
Perhaps, determine that receiver side is 2 for the symbolic number that sends SRS in each subframe, described character position is the 1st symbol of the 1st time slot in each subframe and the 7th symbol of the 2nd time slot, or the 7th symbol of the 1st time slot and the 7th symbol of the 2nd time slot in each subframe, or the 7th symbol of the 1st time slot and the 7th symbol of the 2nd time slot in each subframe, or the 1st symbol and the 7th symbol of the 2nd time slot in each subframe.
Above-mentioned determining unit 60 is further used for, and the OCC mapping mode of determining SRS is time domain mapping or frequency domain mapping;
And the OCC mapping mode of SRS is time domain when mapping, OCC be mapped between 2 SRS of each subframe or 2 SRS of every 2 subframes of doing the time domain binding or 4 SRS on; The OCC mapping mode of SRS is frequency domain when mapping, and OCC is mapped on 2 the adjacent available subcarriers or 4 adjacent available subcarriers of carrying SRS of each subframe.
Above-mentioned determining unit 60 is further used for, and determines that OCC length is that 2, OCC is [+1 ,+1] or [+1 ,-1];
Perhaps, determine that OCC length is that 4, OCC is [+1 ,+1 ,+1 ,+1] or [+1 ,-1 ,+1 ,-1] or [+1 ,+1 ,-1 ,-1] or [+1 ,-1 ,-1 ,+1].
On the basis of detection reference signal inking device shown in Figure 6, embodiment of the present invention detection reference signal inking device also comprises receiving element (not shown in Fig. 6), dispensing unit (not shown in Fig. 6) and transmitting element (not shown in Fig. 6); Wherein:
Receiving element is used for receiving the SRS configuration information;
Dispensing unit is used for according to described configuration information configuration SRS;
Transmitting element is used for sending the SRS signal after configuring.
Those skilled in the art are to be understood that, the function of the above-mentioned processing unit in the present invention's detection reference signal inking device shown in Figure 6 can be passed through corresponding hardware circuit, or the mode of processor and corresponding executive software and realizing, for example, above-mentioned notification unit, transmitting element and receiving element can be realized by the antenna processing system.The correlation function of above-mentioned each processing unit can be referring to the associated description of the embodiment of aforementioned detection reference signal collocation method and understand.
The above is only preferred embodiment of the present invention, is not for limiting protection scope of the present invention.
Claims (15)
1. a detection reference signal collocation method, is characterized in that, described method comprises:
Network side determines that receiver side is used to send the configuration information of detection reference signal SRS, and the notice receiver side.
2. method according to claim 1, is characterized in that, described configuration information comprises the mapping mode of SRS and at least one of following information:
The quadrature mask OCC of SRS enables to identify, the OCC length of SRS, the OCC of SRS and the OCC mapping mode of SRS.
3. method according to claim 2, is characterized in that, network side determines that the mapping mode of SRS is:
Described network side determines that receiver side is used for sending symbolic number and the character position of SRS in each subframe;
Network side determines that the OCC mapping mode of SRS is: the OCC mapping position of determining SRS according to symbolic number and the character position of described SRS.
4. method according to claim 3, is characterized in that, described network side determines that described UE for the symbolic number and the character position that send SRS is in each subframe:
Described network side determines that receiver side is 1 for the symbolic number that sends SRS in each subframe, described character position is the 1st symbol of the 1st time slot in subframe, or the 7th symbol on the 1st time slot in subframe, or the 1st symbol of the 2nd time slot in each subframe, or the second-to-last symbol of the 2nd time slot in each subframe;
Perhaps, described network side determines that receiver side is 2 for the symbolic number that sends SRS in each subframe, described character position is the 1st symbol of the 1st time slot in each subframe and the 7th symbol of the 2nd time slot, or the 7th symbol of the 1st time slot and the 7th symbol of the 2nd time slot in each subframe, or the 7th symbol of the 1st time slot and the 7th symbol of the 2nd time slot in each subframe, or the 1st symbol and the 7th symbol of the 2nd time slot in each subframe.
5. method according to claim 4, is characterized in that, network side determines that the OCC mapping mode of SRS is time domain mapping or frequency domain mapping;
The OCC mapping position of determining SRS according to symbolic number and the character position of described SRS is: the OCC mapping mode of SRS is time domain when mapping, OCC be mapped between 2 SRS of each subframe or 2 SRS of every 2 subframes of doing the time domain binding or 4 SRS on;
The OCC mapping mode of SRS is frequency domain when mapping, and OCC is mapped on 2 the adjacent available subcarriers or 4 adjacent available subcarriers of carrying SRS of each subframe.
6. method according to claim 2, is characterized in that, network side determines that OCC length is that 2, OCC is [+1 ,+1] or [+1 ,-1];
Perhaps, network side determines that OCC length is that 4, OCC is [+1 ,+1 ,+1 ,+1] or [+1 ,-1 ,+1 ,-1] or [+1 ,+1 ,-1 ,-1] or [+1 ,-1 ,-1 ,+1].
7. the described method of according to claim 1 to 6 any one, is characterized in that, described network side is notified receiver side by high-level signaling or physical layer signaling with described configuration information.
8. method according to claim 7, is characterized in that, described method also comprises:
Receiver side configures SRS according to the configuration information of received SRS according to described configuration information, and the SRS signal after configuring to the network side transmission.
9. a detection reference signal inking device, is characterized in that, described device comprises determining unit and notification unit, wherein:
Determining unit is used for determining that receiver side is used for sending the configuration information of SRS;
Notification unit is used for described configuration information notice receiver side.
10. device according to claim 9, is characterized in that, described configuration information comprises the mapping mode of SRS and at least one of following information:
The OCC of SRS enables to identify, the OCC length of SRS, the OCC of SRS and the OCC mapping mode of SRS.
11. device according to claim 10 is characterized in that, described determining unit is further used for, and determines that receiver side is used for sending symbolic number and the character position of SRS in each subframe; And, the OCC mapping position of determining SRS according to symbolic number and the character position of described SRS.
12. device according to claim 11, it is characterized in that, described determining unit is further used for, determine that receiver side is 1 for the symbolic number that sends SRS in each subframe, described character position is the 1st symbol of the 1st time slot in subframe, or the 7th symbol on the 1st time slot in subframe, or the 1st symbol of the 2nd time slot in each subframe, or the second-to-last symbol of the 2nd time slot in each subframe;
Perhaps, determine that receiver side is 2 for the symbolic number that sends SRS in each subframe, described character position is the 1st symbol of the 1st time slot in each subframe and the 7th symbol of the 2nd time slot, or the 7th symbol of the 1st time slot and the 7th symbol of the 2nd time slot in each subframe, or the 7th symbol of the 1st time slot and the 7th symbol of the 2nd time slot in each subframe, or the 1st symbol and the 7th symbol of the 2nd time slot in each subframe.
13. device according to claim 12 is characterized in that, described determining unit is further used for, and the OCC mapping mode of determining SRS is time domain mapping or frequency domain mapping;
And the OCC mapping mode of SRS is time domain when mapping, OCC be mapped between 2 SRS of each subframe or 2 SRS of every 2 subframes of doing the time domain binding or 4 SRS on; The OCC mapping mode of SRS is frequency domain when mapping, and OCC is mapped on 2 the adjacent available subcarriers or 4 adjacent available subcarriers of carrying SRS of each subframe.
14. device according to claim 10 is characterized in that, described determining unit is further used for, and determines that OCC length is that 2, OCC is [+1 ,+1] or [+1 ,-1];
Perhaps, determine that OCC length is that 4, OCC is [+1 ,+1 ,+1 ,+1] or [+1 ,-1 ,+1 ,-1] or [+1 ,+1 ,-1 ,-1] or [+1 ,-1 ,-1 ,+1].
15. the described device of according to claim 9 to 14 any one is characterized in that described device also comprises receiving element, dispensing unit and transmitting element; Wherein:
Receiving element is used for receiving the SRS configuration information;
Dispensing unit is used for according to described configuration information configuration SRS;
Transmitting element is used for sending the SRS signal after configuring.
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| PCT/CN2012/079050 WO2013063961A1 (en) | 2011-10-31 | 2012-07-23 | Method and device for configuring sounding reference signal |
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| CN2011103377379A CN103095442A (en) | 2011-10-31 | 2011-10-31 | Sounding reference signal configuration method and device |
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