CN103248586A

CN103248586A - Methods for transmitting and detecting control signaling, network equipment and user equipment

Info

Publication number: CN103248586A
Application number: CN 201210031574
Authority: CN
Inventors: 周明宇; 高驰; 夏亮
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2012-02-13
Filing date: 2012-02-13
Publication date: 2013-08-14
Also published as: WO2013120408A1

Abstract

The invention discloses methods for transmitting and detecting control signaling, network equipment and user equipment. The method for transmitting the control signaling comprises the steps of determining a first antenna port used by transmitting the control signaling; determining a first subcarrier which is used for transmitting a demodulation reference signal and corresponds to the first antenna port; mapping the control signaling into a resource, used for transmitting the control signaling, in the first subcarrier; and transmitting the control signaling to the user equipment on the first subcarrier. According to the methods for transmitting and detecting the control signaling, the network equipment and the user equipment which are disclosed by the embodiment of the invention, the control signaling is transmitted on the resource, used for transmitting the demodulation reference signal, of the sub-carrier, so that the channel estimation precision for transmitting the control signaling can be improved, and further, the transmission performance of the control signaling can be improved.

Description

Method, the network equipment and the subscriber equipment of transmission and detection control signaling

Technical field

The present invention relates to the communications field, relate in particular to the method, the network equipment and the subscriber equipment that transmit and detect the control signaling in the communications field.

Background technology

In a communication system, base station (Base Station abbreviates " BS " as) needs dynamically to control signaling and sends to subscriber equipment (User Equipment abbreviates " UE " as) in order to realize flexible dispatching.For example, suitable scheduling scheme can be determined according to channel variation usually in the base station, and the information that will comprise scheduling scheme sends to subscriber equipment by the control signaling, this scheduling scheme generally includes modulation system, code rate etc., and this scheduling scheme can also comprise space transmission plan and/or power control scheme etc.; Subscriber equipment just can be controlled signaling according to this and send accordingly or receive.These scheduling schemes are determined in real time according to channel conditions, therefore can select only transmission plan for subscriber equipment, thereby promote reliability and the validity of transmission.

The carrying base station is called as Physical Downlink Control Channel (Physical Downlink Control CHannel to the channel of the control signaling that UE sends, abbreviate " PDCCH " as), for simplicity, " the transmission PDCCH " that describe below namely represents to send or receive the control signaling by PDCCH.The base station can send control signaling on each Transmission Time Interval (Transmission Time Interval abbreviates " TTI " as); TTI length in time is 1ms, comprise 14 OFDMs (Orthogonal Frequency Division Multiplexing, abbreviate " OFDM " as) symbol, a subcarrier on a temporal OFDM symbol and the frequency is called as a Resource Unit (Resource Element abbreviates " RE " as); In a TTI, 12 subcarriers on the frequency have constituted a Physical Resource Block (Physical Resource Block abbreviates " PRB " as) jointly.For example, the base station is that PDCCH reserves 2 PRB for transmission PDCCH, other PRB among this TTI except the PRB that is used for transmission PDCCH can be used to transmitting physical DSCH Downlink Shared Channel (Physical Downlink Shared CHannel abbreviates " PDSCH " as).

Transmit after the PDCCH in such a manner the base station, and UE just can detect and obtain the PDCCH that the base station sends to UE at the PRB that is used for transmission PDCCH, and then sends or receive operation accordingly according to the control signaling of PDCCH carrying.Usually, a PRB comprises many RE, can carry the PDCCH that sends to a plurality of UE, and the base station can be mapped to the PDCCH that sends to a plurality of UE on the RE of dispersion.Design can cause the PDCCH that sends to each UE to appear on all subcarriers like this, thereby can obtain the benefit of frequency diversity, namely wherein the wireless channel of parton carrier wave correspondence is subjected to deep fade, and UE also can obtain PDCCH by other subcarrier is carried out demodulation.

The base station is in transmission PDCCH, and meeting some in same PRB fixedly RE position sends the demodulated reference signal (Demodulation Reference Signal abbreviates " DM RS " as) that is used for channel estimating.UE receives after this PRB, can carry out channel estimating according to DM RS, and according to channel estimation results PDCCH be carried out demodulation, thereby obtain the control signaling that the base station sends.Yet present mapping mode is not considered subcarrier and mapping mode to the influence of channel estimating performance, thus the transmission performance of influence control signaling.

Summary of the invention

The embodiment of the invention provides a kind of transmission and has detected method, the network equipment and the subscriber equipment of control signaling, can improve the transmission performance of control signaling.

On the one hand, the embodiment of the invention provides a kind of method of control channel, and this method comprises: determine employed first antenna port of control channel; According to this first antenna port, determine to be used for accordingly with this first antenna port first subcarrier of transmission demodulated reference signal DM RS; This control signaling is mapped to the resource that is used for control channel in this first subcarrier; Should the control signaling to user device transmissions on this first subcarrier.

On the other hand, the embodiment of the invention provides a kind of method that detects the control signaling, this method comprises: according to first antenna port that is used for control channel, determine to be used for accordingly with this first antenna port first subcarrier of transmission demodulated reference signal DM RS; The resource that is used for this control signaling of transmission in this first subcarrier detects this control signaling of network equipment transmission.

On the one hand, the embodiment of the invention provides a kind of network equipment again, and this network equipment comprises: first determination module is used for determining employed first antenna port of control channel; Second determination module is used for this first antenna port definite according to this first determination module, determines to be used for accordingly with this first antenna port first subcarrier of transmission demodulated reference signal DM RS; Mapping block is used for controlling signaling and is mapped to the resource that this definite first subcarrier of this second determination module is used for control channel; First transport module, being used for should the control signaling to user device transmissions on this first subcarrier.

Again on the one hand, the embodiment of the invention provides a kind of subscriber equipment, this subscriber equipment comprises: first determination module, be used for according to first antenna port that is used for control channel, and determine to be used for accordingly with this first antenna port first subcarrier of transmission demodulated reference signal DM RS; First detection module, this first subcarrier that is used for determining at this first determination module is used for the resource of this control signaling of transmission, detects this control signaling of network equipment transmission.

Based on technique scheme, method, the network equipment and the subscriber equipment of the transmission of the embodiment of the invention and detection control signaling, by the transmitted over resources control signaling at the subcarrier that is used for the transmission demodulated reference signal, the precision of channel estimation of control channel can be improved, thereby the transmission performance of control signaling can be improved.

Description of drawings

In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, to do to introduce simply to the accompanying drawing of required use in the embodiment of the invention below, apparently, below described accompanying drawing only be some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the indicative flowchart according to the method for the control channel of the embodiment of the invention.

Fig. 2 is the schematic block diagram according to a Physical Resource Block of the embodiment of the invention.

Fig. 3 is another indicative flowchart according to the method for the control channel of the embodiment of the invention.

Fig. 4 is another schematic block diagram according to a Physical Resource Block of the embodiment of the invention.

Fig. 5 is the schematic block diagram again according to a Physical Resource Block of the embodiment of the invention.

Fig. 6 is the indicative flowchart according to the method for determining first subcarrier of the embodiment of the invention.

Fig. 7 is the schematic block diagram again according to a Physical Resource Block of the embodiment of the invention.

Fig. 8 is the indicative flowchart again according to the method for the control channel of the embodiment of the invention.

Fig. 9 is the schematic block diagram again according to a Physical Resource Block of the embodiment of the invention.

Figure 10 is the schematic diagram that the different employed RE of antenna port control channel in the same antenna port set interlocks in time domain that passes through according to the embodiment of the invention.

Figure 11 is the schematic diagram that the different employed RE of antenna port control channel in the same antenna port set interlocks at frequency domain that passes through according to the embodiment of the invention.

Figure 12 passes through the different employed RE of antenna port control channel in the same antenna port set at the staggered schematic diagram of time domain and frequency domain according to the embodiment of the invention.

Figure 13 is the schematic diagram that the employed RE of antenna port control channel in the different antennae port set interlocks at frequency domain that passes through according to the embodiment of the invention.

Figure 14 is the schematic diagram that the employed RE of antenna port control channel in the different antennae port set interlocks in time domain that passes through according to the embodiment of the invention.

Figure 15 passes through the employed RE of antenna port control channel in the different antennae port set at the staggered schematic diagram of time domain and frequency domain according to the embodiment of the invention.

Figure 16 passes through the employed RE of antenna port control channel in the different antennae port set at another staggered schematic diagram of time domain and frequency domain according to the embodiment of the invention.

Figure 17 is the indicative flowchart of the method for control channel according to another embodiment of the present invention.

Figure 18 is another indicative flowchart of the method for control channel according to another embodiment of the present invention.

Figure 19 is an indicative flowchart again of the method for control channel according to another embodiment of the present invention.

Figure 20 is the indicative flowchart of determining the method for first subcarrier according to another embodiment of the present invention.

Figure 21 is an indicative flowchart again of the method for control channel according to another embodiment of the present invention.

Figure 22 is an indicative flowchart again of the method for control channel according to another embodiment of the present invention.

Figure 23 is the schematic block diagram according to the network equipment of the embodiment of the invention.

Figure 24 is the schematic block diagram according to second determination module of the embodiment of the invention.

Figure 25 is the schematic block diagram according to second determining unit of the embodiment of the invention.

Figure 26 is another schematic block diagram according to the network equipment of the embodiment of the invention.

Figure 27 is the schematic block diagram according to the subscriber equipment of the embodiment of the invention.

Figure 28 is another schematic block diagram according to the subscriber equipment of the embodiment of the invention.

Figure 29 is the schematic block diagram according to first determination module of the embodiment of the invention.

Figure 30 is the schematic block diagram according to second determining unit of the embodiment of the invention.

Figure 31 is the schematic block diagram again according to the subscriber equipment of the embodiment of the invention.

Figure 32 is the schematic block diagram again according to the subscriber equipment of the embodiment of the invention.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, the every other embodiment that those of ordinary skills obtain under the prerequisite of not making creative work should belong to the scope of protection of the invention.

Should understand, the technical scheme of the embodiment of the invention can be applied to various communication systems, for example: global system for mobile telecommunications (Global System of Mobile communication, abbreviate " GSM " as) system, code division multiple access (Code Division Multiple Access, abbreviate " CDMA " as) system, Wideband Code Division Multiple Access (WCDMA) (Wideband Code Division Multiple Access, abbreviate " WCDMA " as) system, GPRS (General Packet Radio Service, abbreviate " GPRS " as), Long Term Evolution (Long Term Evolution, abbreviate " LTE " as) system, LTE Frequency Division Duplexing (FDD) (Frequency Division Duplex, abbreviate " FDD " as) system, LTE time division duplex (Time Division Duplex, abbreviate " TDD " as), universal mobile telecommunications system (Universal Mobile Telecommunication System, abbreviate " UMTS " as), the whole world interconnected inserting of microwave (Worldwide Interoperability for Microwave Access abbreviates " WiMAX " as) communication system etc.

Will also be understood that, in embodiments of the present invention, subscriber equipment (User Equipment, abbreviate " UE " as) can be referred to as terminal (Terminal), travelling carriage (Mobile Station, abbreviate " MS " as), portable terminal (Mobile Terminal) etc., this subscriber equipment can be through wireless access network (Radio Access Network, abbreviate " RAN " as) communicate with one or more core net, for example, subscriber equipment can be mobile phone (or being called " honeycomb " phone), has the computer of portable terminal etc., for example, subscriber equipment can also be portable, pocket, hand-hold type, built-in computer or vehicle-mounted mobile device, they and wireless access network switched voice and/or data.

In embodiments of the present invention, the base station can be base station (the Base Transceiver Station among GSM or the CDMA, abbreviate " BTS " as), also can be the base station (NodeB abbreviates " NB " as) among the WCDMA, can also be evolved base station (the Evolutional Node B among the LTE, abbreviate " ENB or e-NodeB " as), the present invention does not limit, but for convenience of description, following embodiment will be that example describes with ENB.

Fig. 1 shows the indicative flowchart according to the method 100 of the control channel of the embodiment of the invention.As shown in Figure 1, this method 100 comprises:

S110 determines employed first antenna port of control channel;

S120 according to this first antenna port, determines to be used for accordingly with this first antenna port first subcarrier of transmission demodulated reference signal DM RS;

S130 is mapped to this control signaling the resource that is used for control channel in this first subcarrier;

S140 should the control signaling to user device transmissions on this first subcarrier.

The network equipment can determine to be used for accordingly with this first antenna port first subcarrier of transmission DM RS according to this first antenna port behind employed first antenna port of definite control channel; Thereby the network equipment can be mapped to this control signaling in this first subcarrier and can be used on the resource of control channel, and should the control signaling to user device transmissions on this first subcarrier.Because control channel on the subcarrier of transmission DM RS, make that the channel estimation results of this control signaling is more accurate, avoid the DM RS that carries according on adjacent or other subcarrier, the precision of channel estimation that causes by approximate processing methods such as interpolation descends, thereby can improve reliability and the validity of the transmission of control signaling.

Therefore, the method of the control channel of the embodiment of the invention, transmitted over resources control signaling by at the subcarrier that is used for the transmission demodulated reference signal can improve the precision of channel estimation of control channel, thereby can improve the transmission performance of control signaling.

In S110, the network equipment is determined employed first antenna port of control channel.

In embodiments of the present invention, the network equipment can be determined this first antenna port in several ways.For example, if the network equipment by the individual PRB of L (L is natural number) to the UE control channel, then for each UE, can on each PRB, pre-set an antenna port; Thereby when the network equipment when the individual PRB of i (i is natural number) goes up control channel, can determine that employed i the antenna port of control channel is first antenna port; Similarly, when UE when i PRB detects the control signaling, can determine to use i antenna port to control the detection of signaling.Again for example, the network equipment can distribute different antenna ports to different UEs, and can be by sending means of signaling to UE, the information of notice " first antenna port ".Should be understood that the network equipment is that UE antenna distributed port can be the antenna port of random distribution.

Should understand, in embodiments of the present invention, this first antenna port can be an antenna port for control channel, also can be at least two antenna ports, and namely the network equipment can be controlled signaling to user device transmissions by one or more antenna port.

In S120, the network equipment is according to this first antenna port, and can determine to be used for accordingly with this first antenna port first subcarrier of transmission demodulated reference signal DM RS according to the corresponding relation of the antenna port that presets with the subcarrier that can be used in transmission DM RS.

For example, as shown in Figure 2, in a TTI, a Physical Resource Block PRB comprises 12 subcarriers, and wherein 6 subcarriers can be used for transmission DM RS.Suppose the employed antenna port A of control channel and the

subcarrier

0,5 that is used for transmission DM RS, 10 corresponding, then the network equipment can be defined as first subcarrier with

subcarrier

0,5,10.

Should understand, can comprise a subcarrier with a corresponding subcarrier of antenna port, also can comprise more than one subcarrier, for example, antenna port A is can be only corresponding with the subcarrier 0 that is used for transmission DM RS, or antenna port A can with the

subcarrier

1,6 that is used for transmission DM RS, 11 corresponding etc.

Should also be understood that can be different fully with the corresponding subcarrier of different antennae port, also can be identical, and all right part is identical.For example, antenna port A can with the

subcarrier

0,5 that is used for transmission DM RS, 10 corresponding, antenna port B can with the

subcarrier

1,6 that is used for transmission DM RS, 11 corresponding, as shown in Figure 2; Again for example, antenna port 7 can with the subcarrier 0 that is used for transmission DM RS, 5 corresponding, antenna port 8 also can with the subcarrier 0 that is used for transmission DM RS, 5 corresponding; Again for example, antenna port 7 can with the subcarrier 5 that is used for transmission DM RS, 10 corresponding, antenna port 9 can with the subcarrier 1 that is used for transmission DM RS, 10 corresponding.

In S130, the network equipment will be controlled signaling and be mapped to the resource that is used for control channel in this first subcarrier.

In embodiments of the present invention, the network equipment can be mapped to the part or all of resource that is used for control channel in this first subcarrier with the control signaling, and namely the network equipment can be mapped to the control signaling the part or all of subcarrier that is used for transmission DM RS with first antenna port accordingly.For example, as shown in Figure 2, for comprising

subcarrier

0,5,11 first subcarrier, the network equipment can only be mapped to the control signaling on the subcarrier 0, also the control signaling can be mapped on the

subcarrier

0,5,11.

Should be understood that the network equipment except can being mapped to the control signaling in first subcarrier, can also be mapped to the control signaling on other subcarrier, the embodiment of the invention is not limited to this.

In S140, the network equipment should the control signaling to user device transmissions on this first subcarrier.

The method according to the control channel of the embodiment of the invention that should be understood that comprises that also the network equipment at first subcarrier transmission DM RS, for simplicity, does not repeat them here.

Should understand, in embodiments of the present invention, the network equipment can be the base station, the network equipment also can be access point (Access Point, abbreviate " AP " as), far-end wireless device (Remote Radio Equipment, abbreviate " RRE " as), far-end radio port (Remote Radio Head abbreviates " RRH " as), far-end radio-cell (Remote Radio Unit abbreviates " RRU " as) etc.The embodiment of the invention is that example describes with the base station, but the present invention is not limited to this.

In embodiments of the present invention, alternatively, in S110, the network equipment is determined employed first antenna port of control channel, comprise: the network equipment is determined this first antenna port at least two antenna ports that are used for this control signaling of transmission, the subcarrier difference that is used for transmission DM RS of different antenna port correspondences in these at least two antenna ports.

For example, as shown in Figure 2, antenna port A is to being applied to transmit the

subcarrier

0,5,10 of DM RS, antenna port B is to being applied to transmit the

subcarrier

1,6,11 of DM RS, namely the subcarrier that is used for transmission DM RS of these two antenna port A and B correspondence is different, at two antenna port A that are used for control channel and B, the network equipment determines that the employed antenna port of control channel is this first antenna port.

Particularly, if the network equipment is by antenna port A control channel, the network equipment is defined as first antenna port with antenna port A so, to be defined as first subcarrier at least one subcarrier of transmission DMRS accordingly with this antenna port A, and will control signaling and be mapped in this first subcarrier the part or all of resource that is used for control channel, to transmit this control signaling; If the network equipment is by antenna port B control channel, the network equipment is defined as first antenna port with antenna port B so, to be defined as first subcarrier at least one subcarrier of transmission DM RS accordingly with this antenna port B, and will control signaling and be mapped in this first subcarrier the part or all of resource that is used for control channel, to transmit this control signaling.

Should understand, above-mentioned specific embodiment is that example describes with antenna port A and B only, when the antenna port that can be used in control channel comprises plural antenna port, for the situation of the network equipment by other antenna port or plural antenna port control channel, the handling process of the network equipment is similar to the above embodiments, for simplicity, do not repeat them here.

In embodiments of the present invention, the subcarrier that is used for transmission DM RS with the different antennae port accordingly can be different fully, also can be identical, and all right part is identical.Different antennae port for corresponding with the same sub-carrier that is used for transmission DM RS can be set to one group.Thereby, with corresponding first subcarrier of first antenna port, can determine according to antenna port group and the corresponding relation of the subcarrier that is used for transmission DM RS.

Particularly, in embodiments of the present invention, alternatively, as shown in Figure 3, determine to be used for accordingly with this first antenna port first subcarrier of transmission demodulated reference signal DM RS, comprising:

S121, the network equipment determine the first antenna port group that this first antenna port is affiliated according to this first antenna port;

S122, in formed first subcarrier set of the part or all of subcarrier that is used for transmission DM RS that a Physical Resource Block PRB comprises, the network equipment will be defined as this first subcarrier with the corresponding subcarrier of this first antenna port group in this first subcarrier set;

On this first subcarrier, should control signaling to user device transmissions, comprise:

S141, the network equipment should the control signalings to this user device transmissions on this first subcarrier by the antenna port in this first antenna port group.

Should understand, method according to the control channel of the embodiment of the invention comprises that also the network equipment is at first subcarrier transmission DM RS, and the network equipment is by the antenna port in this first antenna port group, on this first subcarrier to this user device transmissions DM RS, for simplicity, do not repeat them here.

For example, as shown in Figure 4,

antenna port

7 and 8 is first group of antenna port,

antenna port

9 and 10 is second group of antenna port, first group of antenna port and the

subcarrier

0,5 that is used for transmission DM RS, 10 corresponding, second group of antenna port and the

subcarrier

1,6 that is used for transmission DM RS, 11 corresponding, and suppose that the set of first subcarrier comprises

subcarrier

0,1,5,6,10,11.

When the network equipment determines that employed first antenna port of control channel is

antenna port

7 or 8, the network equipment can determine that the first antenna port group under this first antenna port is first group, thereby can transmit DM RS at

subcarrier

0,5,10, and can be used for control channel on the RE of control channel on the

subcarrier

0,5,10; Similarly, when the network equipment determines that employed first antenna port of control channel is

antenna port

9 or 10, the network equipment can determine that the first antenna port group under this first antenna port is second group, thereby can transmit DM RS at

subcarrier

1,6,11, and can be used for control channel on the RE of control channel on the

subcarrier

1,6,11.

Similarly, should be understood that with a corresponding subcarrier of antenna port group to comprise a subcarrier, also can comprise more than one subcarrier; With the corresponding subcarrier of different antennae port set can be different fully, also can part identical.On the other hand, the set of first subcarrier comprises the part or all of subcarrier that can be used in transmission DM RS among the PRB.

Should understand, in embodiments of the present invention, in a PRB, if the network equipment need transmit public reference signal (Common Reference Signal, abbreviate " CRS " as) or when traditional PD CCH or other signal, the RE that these signals occupy is not " resource that can be used in control channel " just, and this moment, the network equipment did not just transmit PDCCH at these RE that occupied.For example, as shown in Figure 5, (namely use preceding several symbols of a TTI for being used to transmit traditional PD CCH, control channel on all PRB) preceding two RE that the OFDM symbol is included, and the RE that is used to transmit some dispersions of CRS among the figure, these RE are not " resources that can be used in control channel ", and the network equipment can only transmit the control signaling according to the embodiment of the invention by the RE except these RE and DM RS.

In embodiments of the present invention, the antenna port that comprises of this first antenna port group uses identical Resource Unit RE to be used for the transmission of this DM RS.Namely in embodiments of the present invention, the antenna port that uses identical Resource Unit RE to be used for the transmission of DM RS can be set to one group of antenna port.

For example, at Long Term Evolution shown in Figure 4 (Long Term Evolution, abbreviate " LTE " as) in the system in the corresponding diagram of the shared RE of DM RS of a PRB, 4 antenna ports are used for the RE of transmission bearer DM RS, and the numbering of these 4 antenna ports is respectively antenna port 7 to 10 in this LTE system.Wherein

antenna port

7 and 8 uses identical RE to transmit DM RS, and antenna port 7 can be distinguished by different orthogonal codes with 8;

Antenna port

9 and 10 uses identical RE to transmit DM RS, and antenna port 9 can be distinguished by different orthogonal codes with 10.Therefore, can be considered as first group of antenna port to

antenna port

7 and 8,

antenna port

9 and 10 is considered as second group of antenna port.

Should understand, term in the embodiment of the invention " group " is just in order to illustrate the implication of " one or more ", for example the antenna port group is represented one or more antenna ports, in fact the not operation of grouping, the term here " group " also can be understood as " cover ", " set ", " class " etc.

In embodiments of the present invention, as shown in Figure 6, alternatively, this network equipment will be defined as this first subcarrier with the corresponding subcarrier of this first antenna port group in this first subcarrier set, comprising:

S125, in quantity that the set of this first subcarrier the comprises subcarrier group identical with the quantity of antenna port group, the subcarrier group that the network equipment is identical with the sequence number of this first antenna port group with sequence number is defined as the first subcarrier group;

S126, the network equipment is defined as this first subcarrier with the subcarrier that this first subcarrier group comprises.

Particularly, in a PRB, the set of first subcarrier comprises L (L is natural number) group subcarrier, every group of subcarrier comprises at least one subcarrier that can be used in transmission DM RS, the antenna port that is used for control channel also comprises L antenna port group, and each antenna port group comprises at least one antenna port.When the network equipment during by the arbitrary antenna port control channel in the k group antenna port, then at k group subcarrier transmission DM RS, and will control signaling and be mapped to k and organize the resource that can be used for control channel on the subcarrier, wherein k is natural number, and k=1 ..., L.

For example, as shown in Figure 7, all 6 subcarriers (numbering is respectively 0,1,5,6,10,11) that can be used for transmitting DM RS are divided into 2 groups, and the 1st group of subcarrier number is that 0,5,10, the 2 groups of subcarrier number are 1,6,11.If the network equipment is by the arbitrary antenna port control channel in the 1st group of antenna port, then at the subcarrier transmission DM RS that is numbered 0,5,10, and will controls signaling and be mapped on these subcarriers; If the network equipment is by the arbitrary antenna port control channel in the 2nd group of antenna port, then at the subcarrier transmission DM RS that is numbered 1,6,11, and will controls signaling and be mapped on these subcarriers.

Thereby, the network equipment can be fast and control channel simply, subscriber equipment also can detect the control signaling quickly and easily, and the embodiment of the invention is by controlling signaling in the more transmitted over resources that is used for the subcarrier of transmission demodulated reference signal, can improve the precision of channel estimation of control channel to a greater degree, and improve the transmission performance of control signaling.

In embodiments of the present invention, as shown in Figure 8, alternatively, the method 100 of control channel also comprises:

S150, on continuous sub-carriers on every N the frequency that the set of this first subcarrier comprises, the network equipment is organized antenna port in the antenna port group to this DM RS of this user device transmissions by N respectively, and wherein N is natural number.

For example, as shown in Figure 7, numbering is respectively 0,1,5,6,10,11 subcarrier and can be used for transmitting DM RS, in comprising

subcarrier

0,1,5,6,10, the set of 11 first subcarrier,

subcarrier

0,1 is continuous on frequency,

subcarrier

5,6 is continuous on frequency, and

subcarrier

10,11 is continuous on frequency, i.e. N=2.Therefore, the network equipment can be respectively on continuous sub-carriers on per 2 frequencies, and namely in

subcarrier

0 and 1,

subcarrier

5 and 6 is on the

subcarrier

10 and 11, respectively by the 1st group and the 2nd group of antenna port transmission DM RS.

Should understand, on continuous sub-carriers on the different N frequency, the network equipment can also can transmit DM RS by the different antenna port in each antenna port group by the identical antenna port in each antenna port group to user device transmissions DM RS.For example, on subcarrier 0, send DM RS by the antenna port 7 that belongs to first group of antenna port, on subcarrier 5, send DM RS by the antenna port 8 that belongs to first group of antenna port.

In embodiments of the present invention, for continuous sub-carriers on the frequency, because for antenna port on the same group not, distribution for the subcarrier that transmits DM RS is similar, therefore, can make all have similar channel estimating performance by on the same group the control signaling of antenna port transmission not, thereby can further improve the transmission performance of control signaling.

In embodiments of the present invention, for first subcarrier, control signaling by the antenna port in the first antenna port group to user device transmissions; But for a PRB, be the interval with L subcarrier all uniformly-spaced on the RE that can be used in control channel of subcarrier, the network equipment can use same group of antenna port to send control signaling.

For example, as shown in Figure 9, be numbered the subcarrier of even number (with 2 subcarriers all subcarriers uniformly-spaced that are the interval) can be used for transmitting on the RE of PDCCH, the network equipment sends PDCCH by first group of antenna port; Be numbered the subcarrier of odd number (with 2 subcarriers all subcarriers uniformly-spaced that are the interval) can be used for transmitting on the RE of PDCCH, the network equipment sends PDCCH by second group of antenna port.

Shine upon PDCCH by such mode, has simple advantage, and 64 subcarriers (being numbered 0,1,10,11) that are used for the subcarrier of transmission DM RS have all used technical scheme of the present invention, can improve the precision of channel estimation of the arbitrary antenna port transmission PDCCH in these two groups of antenna ports.

Should understand, in embodiments of the present invention, preferably, at the subcarrier that is used for transmission DM RS, group under the employed antenna port of transmission DM RS is identical with the group under the employed antenna port of control channel, namely uses identical group antenna port to gather subcarrier transmission DM RS and the control signaling that comprises at first subcarrier.

In embodiments of the present invention, when the first antenna port group comprises at least two antenna ports, should on this first subcarrier, should control signaling to this user device transmissions by the antenna port in this first antenna port group, comprise:

By the different antenna port in this first antenna port group, on this first subcarrier, should control signaling to this user device transmissions, and it is staggered in time domain and/or frequency domain to transmit the employed RE of this control signaling by the different antenna port in this first antenna port group.

Should be understood that term " system " and " network " often are used interchangeably in this article herein.Herein term " and/or ", only be a kind of incidence relation of describing affiliated partner, can there be three kinds of relations in expression, for example, A and/or B, can represent: individualism A exists A and B, these three kinds of situations of individualism B simultaneously.In addition, character "/" herein, generally represent forward-backward correlation to as if a kind of " or " relation.

To comprise that with one group of antenna port 2 antenna ports are that example describes based on Fig. 7 below.Particularly, by the different employed RE of antenna port control channel in the first antenna port group at the staggered schematic diagram of time domain as shown in figure 10.In Figure 10, the network equipment can send PDCCH to UE by 4 antenna ports, first group of antenna port comprises

antenna port

7,8, and it is staggered in time domain that the network equipment sends the employed RE of PDCCH by

antenna port

7,8 to UE, namely uses different OFDM symbols alternately; Second group of antenna port comprises

antenna port

9,10, and it is staggered in time domain that the network equipment sends the employed RE of PDCCH by

antenna port

9,10 to UE.

Should understand, Figure 10 has only schematically provided RE at one of them staggered example of time domain, but the embodiment of the invention is not limited to this, for example, for subcarrier 0, passing through antenna port 7 control channels with the corresponding RE of OFDM symbol that is numbered 0, and be used for all passing through antenna port 8 control channels on the RE of control channel at remaining.

Similarly, by the different employed RE of antenna port control channel in the first antenna port group at the staggered schematic diagram of frequency domain as shown in figure 11.By the different employed RE of antenna port control channel in the first antenna port group at the staggered schematic diagram of time domain and frequency domain as shown in figure 12.Should be understood that Figure 11 and Figure 12 have only schematically provided an example according to the embodiment of the invention, the embodiment of the invention is not limited to this.

S160, by the antenna port in the different antennae port set, gather on the subcarrier that comprises to this control signaling of this user device transmissions at second subcarrier, this second subcarrier is gathered by being used for control channel among the PRB but can not be formed for the part or all of subcarrier of transmission DM RS, and in this second subcarrier set, it is staggered in time domain and/or frequency domain to transmit the employed RE of this control signaling by the antenna port in the different antennae port set.

Should be understood that the network equipment can pass through the antenna port in the different antennae port set, controls signaling to user device transmissions on the part or all of subcarrier that the set of second subcarrier comprises.

Below in conjunction with Figure 13 to Figure 16, the network equipment is transmitted the employed RE of this control signaling by the antenna port in the different antennae port set be described in time domain and/or the staggered scheme of frequency domain.

As shown in figure 13, on the subcarrier that the set of second subcarrier comprises, the network equipment is staggered at frequency domain by the employed RE of antenna port control channel in the different antennae port set.For example, in Figure 13, all subcarriers that can be used for transmitting DM RS are to be numbered 0,1,5,6,10,11 subcarrier, are divided into 2 groups, first group of subcarrier be numbered 0,5,10, the second group of subcarrier be numbered 1,6,11; If the network equipment is by the arbitrary antenna port control channel in the 1st group of antenna port, then at the subcarrier transmission DM RS that is numbered 0,5,10, and will controls signaling and be mapped to and be numbered on 0,2,4,5,8,10 the subcarrier; If the network equipment then transmits DMRS at the subcarrier that is numbered 1,6,11 by the arbitrary antenna port control channel in the 2nd group of antenna port, and will control signaling and be mapped to and be numbered on 1,3,6,7,9,11 the subcarrier.

Wherein, the subcarrier that is not used to transmit DM RS comprises and is numbered 2,3,4,7,8,9 subcarrier, half subcarrier in these subcarriers is used for sending PDCCH by first group of antenna port, and second half is used for sending PDCCH by second group of antenna port.First group of antenna port only is shown among Figure 13 sends PDCCH and use and be numbered 2,4,8 subcarrier, second group of antenna port sends PDCCH and uses the example that is numbered 3,7,9 subcarrier.But it will be appreciated by those skilled in the art that, the present invention also comprises the situation of other allocation of subcarriers, for example, first group of antenna port sends the PDCCH use and is numbered 3,7,9 subcarrier, and second group of antenna port sends the PDCCH use and be numbered 2,4,8 subcarrier; Or first group of antenna port send PDCCH and use and be numbered 2,3,4 subcarrier, and second group of antenna port sends PDCCH and use and be numbered 7,8,9 subcarrier etc.

As shown in figure 14, on the subcarrier that the set of second subcarrier comprises, the network equipment is staggered in time domain by the employed RE of antenna port control channel in the different antennae port set.For example, as shown in figure 14, the subcarrier that is not used to transmit DM RS comprises and is numbered 2,3,4,7,8,9 subcarrier, half OFDM symbol (being numbered 0,2,4,6,8,10,12 symbol) in these subcarriers is used for sending PDCCH by first group of antenna port, and second half OFDM symbol (being numbered 1,3,5,7,9,11,13 symbol) is used for sending PDCCH by second group of antenna port.One of ordinary skill in the art will appreciate that, the present invention also comprises the situation that other distributes the OFDM symbol, for example, first group of antenna port sends PDCCH and uses the OFDM symbol that is numbered even number, and second group of antenna port sends PDCCH and use the OFDM symbol that is numbered odd number; Perhaps, first group of antenna port sends the PDCCH use and is numbered 0 to 6 OFDM symbol, and second group of antenna port transmission PDCCH use is numbered 7 to 13 OFDM symbol etc.

As shown in figure 15, on the subcarrier that the set of second subcarrier comprises, the network equipment is staggered in time domain and frequency domain by the employed RE of antenna port control channel in the different antennae port set.For example, as shown in figure 15, be numbered all RE of comprising on 2,3,4,7,8,9 the subcarrier can time and frequency staggered be used to by not on the same group antenna port send PDCCH.

Similarly, Figure 15 has only provided according to an embodiment of the present, one of ordinary skill in the art will appreciate that, the present invention can also comprise the situation of other distribution, for example, control the transmission of signaling at all RE that are numbered on 2,3,4,7,8,9 the subcarrier by another group antenna port, perhaps scheme is as shown in figure 16 distributed, and perhaps comprises the distribution condition of Else Rule, the distribution condition of random interlace etc.

In embodiments of the present invention, staggered in time domain and frequency domain by the employed RE of antenna port control channel in the different antennae port set, can make precision of channel estimation RE good and low precision uniform distribution to give all antenna ports, can realize that like this PDCCH that the different antennae port sends has similar precision of channel estimation, thereby can improve the transmission performance of control signaling.

In embodiments of the present invention, alternatively, by the antenna port in the different antennae port set, on the subcarrier that the set of second subcarrier comprises, to this control signaling of this user device transmissions, comprising:

By the different antenna port in the different antennae port set, on the subcarrier that the set of this second subcarrier comprises, to this user device transmissions this control signaling, and transmit the employed RE of this control signaling by the different antenna port in the same antenna port set and interlock in time domain and/or frequency domain.

Similarly, extremely shown in Figure 12 as Figure 10, on the subcarrier that the set of second subcarrier comprises, the network equipment is controlled signaling by the different antenna port in the different antennae port set to user device transmissions, and it is staggered in time domain and/or frequency domain wherein to transmit the employed RE of this control signaling by the different antenna port in the same antenna port set.For example, staggered in time domain and/or frequency domain by the antenna port 7 in first group of antenna port and the employed RE of antenna port 8 control channels; And/or it is staggered in time domain and/or frequency domain by the antenna port 9 in second group of antenna port and the employed RE of antenna port 10 control channels.

Should understand, in various embodiment of the present invention, the size of the sequence number of above-mentioned each process does not also mean that the priority of execution sequence, and the execution sequence of each process should determine with its function and internal logic, and should not constitute any restriction to the implementation process of the embodiment of the invention.

Above in conjunction with Fig. 1 to Figure 16, describe method according to the control channel of the embodiment of the invention in detail from the angle of the network equipment, below in conjunction with Figure 17 to Figure 22, from the angle of subscriber equipment method according to the control channel of the embodiment of the invention is described.

Figure 17 shows the indicative flowchart according to the method 300 of the control channel of the embodiment of the invention.As shown in figure 17, this method 300 comprises:

S310 according to first antenna port that is used for control channel, determines to be used for accordingly with this first antenna port first subcarrier of transmission demodulated reference signal DM RS;

S320, the resource that is used for this control signaling of transmission in this first subcarrier detects this control signaling of network equipment transmission.

Subscriber equipment is according to first antenna port that can be used in control channel, definite and this first antenna port is used for first subcarrier of transmission demodulated reference signal DM RS accordingly, and is used for transmitting this control signaling that this resource of controlling signaling detects network equipment transmission in this first subcarrier.

Therefore, the method of the detection control signaling of the embodiment of the invention, transmitted over resources control signaling by at the subcarrier that is used for the transmission demodulated reference signal can improve the precision of channel estimation of control channel, thereby can improve the transmission performance of control signaling.

For example, as shown in Figure 2, the network equipment is numbered in 12 subcarriers that a PRB comprises on 0 and 1 the subcarrier can transmit DM RS, in these two subcarriers, suppose the corresponding subcarrier 0 of antenna port A, the corresponding subcarrier 1 of antenna port B is if the network equipment is by antenna port A control channel, the network equipment just is being numbered 0 subcarrier transmission DM RS so, and can be used for control channel on the RE of control channel in this subcarrier.For UE, in this PRB, carry out channel estimating according to the DM RS that receives at the subcarrier that is numbered 0/1, and according to the result of channel estimating the PDCCH on this subcarrier is carried out demodulation, to obtain the control signaling that the network equipment sends to UE.

Should understand, the method of controlling signaling according to the detection of the embodiment of the invention comprises that also subscriber equipment receives DM RS at first subcarrier, and subscriber equipment carries out channel estimating according to the DM RS that receives, and according to channel estimation results the control signaling is detected.

Should be understood that subscriber equipment except can detect the control signaling in first subcarrier, can also detect the control signaling at other subcarrier, the embodiment of the invention is not limited to this.

Will also be understood that, the network equipment can determine to be suitable for transmitting the resource of PDCCH neatly according to the channel conditions between the network equipment and the UE, therefore UE need know that the network equipment sends the employed resource of PDCCH to it by blind Detecting owing to do not know the network equipment transmits PDCCH by which RE on which PRB.And the network equipment may send a plurality of PDCCH to same UE.Therefore, UE just need carry out repeated detection, in embodiments of the present invention, UE can carry out channel estimating according to the DM RS that receives at the subcarrier that is numbered 0 and 1 respectively, and respectively the PDCCH on these two subcarriers is carried out demodulation according to the result of channel estimating, to obtain the PDCCH that the network equipment sends to UE.

In embodiments of the present invention, as shown in figure 18, alternatively, the method 300 that detects the control signaling also comprises:

S330 determines this first antenna port at least two antenna ports that are used for this control signaling of transmission, the subcarrier difference that is used for transmission DM RS of different antenna port correspondences in these at least two antenna ports.

Should be understood that in embodiments of the present invention this first antenna port can be an antenna port for control channel, also can be at least two antenna ports; A subcarrier can be comprised with a corresponding subcarrier of antenna port, also more than one subcarrier can be comprised.Should also be understood that can be different fully with the corresponding subcarrier of different antennae port, also can be identical, and all right part is identical.

In embodiments of the present invention, as shown in figure 19, alternatively, determine to be used for accordingly with this first antenna port first subcarrier of transmission demodulated reference signal DM RS, comprising:

S311 according to this first antenna port, determines the first antenna port group that this first antenna port is affiliated;

S312, formed first subcarrier set of the part or all of subcarrier that is used for transmission DM RS in that a Physical Resource Block PRB comprises will be defined as this first subcarrier with the corresponding subcarrier of this first antenna port group in this first subcarrier set;

The resource that is used for this control signaling of transmission in this first subcarrier detects this control signaling of network equipment transmission, comprising:

S321, by the antenna port in this first antenna port group, the resource that is used for this control signaling of transmission in this first subcarrier detects this control signaling.

Should understand, the method of controlling signaling according to the detection of the embodiment of the invention comprises that also subscriber equipment receives DM RS at first subcarrier, and subscriber equipment is by the antenna port in this first antenna port group, receive the DM RS of network equipment transmission at this first subcarrier, and carry out channel estimating according to DM RS and control signaling to detect, for simplicity, do not repeat them here.

For example, as shown in Figure 4,

antenna port

7 and 8 is first group of antenna port,

antenna port

9 and 10 is second group of antenna port, first group of antenna port and the

subcarrier

0,1,5,6,10,11.

When subscriber equipment determines that employed first antenna port of control channel is

antenna port

7 or 8, subscriber equipment can determine that the first antenna port group under this first antenna port is first group, thereby can receive DM RS at

subcarrier

0,5,10, and on

subcarrier

0,5,10, can be used for the RE detection control signaling of control channel; Similarly, when subscriber equipment determines that employed first antenna port of control channel is

antenna port

9 or 10, subscriber equipment can determine that the first antenna port group under this first antenna port is second group, thereby can receive DM RS at

subcarrier

1,6,11, and on

subcarrier

1,6,11, can be used for the RE detection control signaling of control channel.

Similarly, should be understood that with a corresponding subcarrier of antenna port group to comprise a subcarrier, also can comprise more than one subcarrier; With the corresponding subcarrier of different antennae port set can be different fully, also can part identical.

In embodiments of the present invention, as shown in figure 20, this will be defined as this first subcarrier with the corresponding subcarrier of this first antenna port group in this first subcarrier set, comprising:

S315, in quantity that the set of this first subcarrier the comprises subcarrier group identical with the quantity of antenna port group, the subcarrier group that subscriber equipment is identical with the sequence number of this first antenna port group with sequence number is defined as the first subcarrier group;

S316, subscriber equipment is defined as this first subcarrier with the subcarrier that this first subcarrier group comprises.

Particularly, in a PRB, the set of first subcarrier comprises L (L is natural number) group subcarrier, every group of subcarrier comprises at least one subcarrier that can be used in transmission DM RS, the antenna port that is used for control channel also comprises L antenna port group, and each antenna port group comprises at least one antenna port.When subscriber equipment is determined by the arbitrary antenna port control channel in the k group antenna port, then receive DM RS at k group subcarrier, and the resource that can be used for control channel in k group subcarrier detects the control signaling, wherein k is natural number, and k=1 ..., L.

In embodiments of the present invention, as shown in figure 21, alternatively, this method 300 also comprises:

S340 on continuous sub-carriers on every N the frequency that this first subcarrier set comprises, receives this DM RS of this network equipment transmission respectively by the antenna port in the N group antenna port group, wherein N is natural number;

S350, this DM RS according to receiving obtains channel estimating information;

The resource that should be used for this control signaling of transmission in this first subcarrier detects this control signaling, comprising:

S322, by the antenna port in this first antenna port group and according to this channel estimating information, the resource that is used for this control signaling of transmission in this first subcarrier detects this control signaling.

In S322, alternatively, subscriber equipment is by the different antenna port in this first antenna port group, the resource that is used for this control signaling of transmission in this first subcarrier detects this control signaling, it is staggered in time domain and/or frequency domain wherein to transmit the employed RE of this control signaling by the different antenna port in this first antenna port group, extremely shown in Figure 12 as Figure 10.

As shown in figure 22, the method 300 according to the detection of embodiment of the invention control signaling also comprises:

S360, by the antenna port in the different antennae port set, the subcarrier that comprises in the set of second subcarrier detects this control signaling that this network equipment transmits, this second subcarrier is gathered by being used for control channel among the PRB but can not be formed for the part or all of subcarrier of transmission DM RS, and in this second subcarrier set, it is staggered in time domain and/or frequency domain to transmit the employed RE of this control signaling by the antenna port in the different antennae port set.

In embodiments of the present invention, by the employed RE of antenna port control channel in the different antennae port set at the staggered schematic diagram of time domain and/or frequency domain such as Figure 13 to shown in Figure 16.

In embodiments of the present invention, alternatively, should be by the antenna port in the different antennae port set, the subcarrier that comprises in the set of second subcarrier detects this control signaling that this network equipment transmits, and comprising:

By the different antenna port in the different antennae port set, the subcarrier that comprises in this second subcarrier set detects this control signaling, and it is staggered in time domain and/or frequency domain to transmit the employed RE of this control signaling by the different antenna port in the same antenna port set.

Should be understood that UE that the UE side describes and base station to reach correlation properties, function etc. alternately corresponding with the description of base station side, for simplicity, do not repeat them here.

Will also be understood that, in various embodiment of the present invention, the size of the sequence number of above-mentioned each process does not also mean that the priority of execution sequence, and the execution sequence of each process should determine with its function and internal logic, and should not constitute any restriction to the implementation process of the embodiment of the invention.

Above in conjunction with Fig. 1 to Figure 22, describe the method according to the transmission face observing and controlling signaling processed of the embodiment of the invention in detail, below in conjunction with Figure 23 to Figure 32, describe the network equipment and subscriber equipment according to the embodiment of the invention in detail.

Figure 23 shows the schematic block diagram according to the network equipment 500 of the embodiment of the invention.As shown in figure 23, this network equipment 500 comprises:

First determination module 510 is used for determining employed first antenna port of control channel;

Second determination module 520 for this first antenna port of determining according to this first determination module 510, is determined with this first antenna port accordingly for first subcarrier that transmits demodulated reference signal DM RS;

Mapping block 530 is used for controlling signaling and is mapped to the resource that these second determination module, 520 these definite first subcarriers are used for control channel;

First transport module 540, being used for should the control signaling to user device transmissions on this first subcarrier.

Therefore, the network equipment of the embodiment of the invention, the transmitted over resources control signaling by at the subcarrier that is used for the transmission demodulated reference signal can improve the precision of channel estimation of control channel, thereby can improve the transmission performance of control signaling.

In embodiments of the present invention, this first determination module 510 also is used for: determine this first antenna port at least two antenna ports that are used for this control signaling of transmission, the subcarrier difference that is used for transmission DM RS of different antenna port correspondences in these at least two antenna ports.

In embodiments of the present invention, as shown in figure 24, alternatively, this second determination module 520 comprises:

First determining unit 521 is used for according to this first antenna port, determines the first antenna port group that this first antenna port is affiliated;

Second determining unit 522, be used for gathering at formed first subcarrier of part or all of subcarrier that is used for transmission DM RS that a Physical Resource Block PRB comprises, will be defined as this first subcarrier with the corresponding subcarrier of this first antenna port group in this first subcarrier set;

This first transport module 540 also is used for: by the antenna port of this first antenna port group, and should the control signaling to this user device transmissions on this first subcarrier.

In embodiments of the present invention, the antenna port that comprises of this first antenna port group uses identical Resource Unit RE to be used for the transmission of this DM RS.

In embodiments of the present invention, as shown in figure 25, alternatively, this second determining unit 522 comprises:

First determines subelement 525, is used for gathering the quantity subcarrier group identical with the quantity of antenna port group that comprises at this first subcarrier, and the subcarrier group that sequence number is identical with the sequence number of this first antenna port group is defined as the first subcarrier group;

Second determines subelement 526, and the subcarrier that is used for this first subcarrier group is comprised is defined as this first subcarrier.

Alternatively, as shown in figure 26, this network equipment also 500 comprises:

Second transport module 550 is used for continuous sub-carriers on every N the frequency that this first subcarrier set comprises, organizes antenna port in the antenna port group to this DM RS of this user device transmissions by N respectively, and wherein N is natural number.

In embodiments of the present invention, alternatively, this first transport module 540 also is used for: by the different antenna port of this first antenna port group, on this first subcarrier, should control signaling to this user device transmissions, and it is staggered in time domain and/or frequency domain to transmit the employed RE of this control signaling by the different antenna port in this first antenna port group.

In embodiments of the present invention, as shown in figure 25, alternatively, this network equipment 500 also comprises:

The 3rd transport module 560, be used for the antenna port by the different antennae port set, gather on the subcarrier that comprises to this control signaling of this user device transmissions at second subcarrier, this second subcarrier is gathered by being used for control channel among the PRB but can not be formed for the part or all of subcarrier of transmission DM RS, and in this second subcarrier set, it is staggered in time domain and/or frequency domain to transmit the employed RE of this control signaling by the antenna port in the different antennae port set.

In embodiments of the present invention, alternatively, the 3rd transport module 560 also is used for: by the different antenna port of different antennae port set, on the subcarrier that the set of this second subcarrier comprises, to this user device transmissions this control signaling, and transmit the employed RE of this control signaling by the different antenna port in the same antenna port set and interlock in time domain and/or frequency domain.

Should be understood that in embodiments of the present invention the network equipment can be the base station, the network equipment also can be access point AP, far-end wireless device RRE, far-end radio port RRH, far-end radio-cell RRU etc.

Will also be understood that, can be corresponding to the network equipment in the method for the transmission face observing and controlling signaling processed of the embodiment of the invention according to the network equipment 500 of the embodiment of the invention, and above-mentioned and other operation of each module in the network equipment 500 and/or function are respectively in order to realize the corresponding flow process of each method among Fig. 1 to Figure 22, for simplicity, do not repeat them here.

Figure 27 shows the schematic block diagram according to the subscriber equipment 700 of the embodiment of the invention.As shown in figure 27, this subscriber equipment 700 comprises:

First determination module 710 is used for according to first antenna port that is used for control channel, determines to be used for accordingly with this first antenna port first subcarrier of transmission demodulated reference signal DM RS;

First detection module 720, this controls the resource of signaling to be used for being used for transmission at this first subcarrier that this first determination module 710 is determined, detects this control signaling of network equipment transmission.

Therefore, the subscriber equipment of the embodiment of the invention, the transmitted over resources control signaling by at the subcarrier that is used for the transmission demodulated reference signal can improve the precision of channel estimation of control channel, thereby can improve the transmission performance of control signaling.

In embodiments of the present invention, as shown in figure 28, alternatively, this subscriber equipment 700 also comprises:

Second determination module 730 is used for determining this first antenna port at least two antenna ports that are used for this control signaling of transmission, the subcarrier difference that is used for transmission DM RS of different antenna port correspondences in these at least two antenna ports.

In embodiments of the present invention, as shown in figure 29, alternatively, this first determination module 710 comprises:

First determining unit 711 is used for according to this first antenna port, determines the first antenna port group that this first antenna port is affiliated;

Second determining unit 712, be used for gathering at formed first subcarrier of part or all of subcarrier that is used for transmission DM RS that a Physical Resource Block PRB comprises, will be defined as this first subcarrier with the corresponding subcarrier of this first antenna port group in this first subcarrier set;

This first detection module 720 also is used for: by the antenna port of this first antenna port group, the resource that is used for this control signaling of transmission in this first subcarrier detects this control signaling.

In embodiments of the present invention, as shown in figure 30, alternatively, this second determining unit 712 comprises:

First determines subelement 715, is used for gathering the quantity subcarrier group identical with the quantity of antenna port group that comprises at this first subcarrier, and the subcarrier group that sequence number is identical with the sequence number of this first antenna port group is defined as the first subcarrier group;

Second determines subelement 716, and the subcarrier that is used for this first subcarrier group is comprised is defined as this first subcarrier.

In embodiments of the present invention, as shown in figure 31, alternatively, this subscriber equipment 700 also comprises:

Receiver module 740 is used for continuous sub-carriers on every N the frequency that this first subcarrier set comprises, receives this DM RS of this network equipment transmission respectively by the antenna port in the N group antenna port group, and wherein N is natural number;

Acquisition module 750 is used for obtaining channel estimating information according to this DM RS that receives;

This first detection module 720 also is used for: by the antenna port of this first antenna port group and according to this channel estimating information, the resource that is used for this control signaling of transmission in this first subcarrier detects this control signaling.

In embodiments of the present invention, alternatively, this first detection module 720 also is used for: by the different antenna port of this first antenna port group, the resource that is used for this control signaling of transmission in this first subcarrier detects this control signaling, and it is staggered in time domain and/or frequency domain wherein to transmit the employed RE of this control signaling by the different antenna port in this first antenna port group.

In embodiments of the present invention, shown in figure 32, alternatively, this subscriber equipment 700 also comprises:

Second detection module 760, be used for the antenna port by the different antennae port set, the subcarrier that comprises in the set of second subcarrier detects this control signaling that this network equipment transmits, this second subcarrier is gathered by being used for control channel among the PRB but can not be formed for the part or all of subcarrier of transmission DM RS, and in this second subcarrier set, it is staggered in time domain and/or frequency domain to transmit the employed RE of this control signaling by the antenna port in the different antennae port set.

In embodiments of the present invention, alternatively, this second detection module 760 also is used for: by the different antenna port of different antennae port set, the subcarrier that comprises in this second subcarrier set detects this control signaling, and it is staggered in time domain and/or frequency domain to transmit the employed RE of this control signaling by the different antenna port in the same antenna port set.

Should understand, can be corresponding to the subscriber equipment in the method for the transmission face observing and controlling signaling processed of the embodiment of the invention according to the subscriber equipment 700 of the embodiment of the invention, and above-mentioned and other operation of each module in the subscriber equipment 700 and/or function are respectively in order to realize the corresponding flow process of each method among Fig. 1 to Figure 22, for simplicity, do not repeat them here.

Those of ordinary skills can recognize, unit and the algorithm steps of each example of describing in conjunction with embodiment disclosed herein, can realize with electronic hardware, computer software or the combination of the two, for the interchangeability of hardware and software clearly is described, composition and the step of each example described in general manner according to function in the above description.These functions still are that software mode is carried out with hardware actually, depend on application-specific and the design constraint of technical scheme.The professional and technical personnel can specifically should be used for using distinct methods to realize described function to each, but this realization should not thought and exceeds scope of the present invention.

The those skilled in the art can be well understood to, and for the convenience described and succinct, the concrete course of work of the system of foregoing description, device and unit can not repeat them here with reference to the corresponding process among the preceding method embodiment.

In several embodiment that the application provides, should be understood that disclosed system, apparatus and method can realize by other mode.For example, device embodiment described above only is schematic, for example, the division of described unit, only be that a kind of logic function is divided, during actual the realization other dividing mode can be arranged, for example a plurality of unit or assembly can in conjunction with or can be integrated into another system, or some features can ignore, or do not carry out.In addition, the shown or coupling each other discussed or directly be coupled or communicate to connect and can be the indirect coupling by some interfaces, device or unit or communicate to connect also can be electric, machinery or other form connect.

Described unit as separating component explanation can or can not be physically to separate also, and the parts that show as the unit can be or can not be physical locations also, namely can be positioned at a place, perhaps also can be distributed on a plurality of network element.Can select wherein some or all of unit to realize the purpose of embodiment of the invention scheme according to the actual needs.

In addition, each functional unit in each embodiment of the present invention can be integrated in the processing unit, also can be that the independent physics in each unit exists, and also can be that two or more unit are integrated in the unit.Above-mentioned integrated unit both can adopt the form of hardware to realize, also can adopt the form of SFU software functional unit to realize.

If described integrated unit is realized with the form of SFU software functional unit and during as independently production marketing or use, can be stored in the computer read/write memory medium.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words, perhaps all or part of of this technical scheme can embody with the form of software product, this computer software product is stored in the storage medium, comprise that some instructions are with so that a computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out all or part of step of the described method of each embodiment of the present invention.And aforesaid storage medium comprises: various media that can be program code stored such as USB flash disk, portable hard drive, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD.

The above; it only is the specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; can expect modification or the replacement of various equivalences easily, these modifications or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.

Claims

1. the method for a control channel is characterized in that, comprising:

Determine employed first antenna port of control channel;

According to described first antenna port, determine to be used for accordingly with described first antenna port first subcarrier of transmission demodulated reference signal DM RS;

Described control signaling is mapped to the resource that is used for control channel in described first subcarrier;

On described first subcarrier to the described control signaling of user device transmissions.

2. method according to claim 1 is characterized in that, employed first antenna port of described definite control channel comprises:

Determine described first antenna port at least two antenna ports that are used for the described control signaling of transmission, the subcarrier difference that is used for transmission DM RS of different antenna port correspondences in described at least two antenna ports.

3. method according to claim 1 is characterized in that, described first subcarrier of determining to be used for accordingly with described first antenna port transmission demodulated reference signal DM RS comprises:

According to described first antenna port, determine the first antenna port group that described first antenna port is affiliated;

Formed first subcarrier set of the part or all of subcarrier that is used for transmission DM RS in that a Physical Resource Block PRB comprises will be defined as described first subcarrier with the corresponding subcarrier of the described first antenna port group in described first subcarrier set;

Described on described first subcarrier to the described control signaling of user device transmissions, comprising:

By the antenna port in the described first antenna port group, on described first subcarrier to the described control signaling of described user device transmissions.

4. method according to claim 3 is characterized in that, the antenna port that the described first antenna port group comprises uses identical Resource Unit RE to be used for the transmission of described DM RS.

5. method according to claim 3 is characterized in that, describedly will be described be defined as described first subcarrier with the corresponding subcarrier of the described first antenna port group in the set of first subcarrier, comprising:

In quantity that the set of described first subcarrier comprises subcarrier group identical with the quantity of antenna port group, the subcarrier group that sequence number is identical with the sequence number of the described first antenna port group is defined as the first subcarrier group;

The subcarrier that the described first subcarrier group is comprised is defined as described first subcarrier.

6. method according to claim 3 is characterized in that, described method also comprises:

On continuous sub-carriers on every N the frequency that the set of described first subcarrier comprises, organize antenna port in the antenna port group to the described DM RS of described user device transmissions by N respectively, wherein N is natural number.

7. method according to claim 3 is characterized in that, and is described by the antenna port in the described first antenna port group, to the described control signaling of described user device transmissions, comprising on described first subcarrier:

By the different antenna port in the described first antenna port group, to the described control signaling of described user device transmissions, and it is staggered at time domain and/or frequency domain to transmit the employed RE of described control signaling by the different antenna port in the described first antenna port group on described first subcarrier.

8. according to each described method in the claim 1 to 7, it is characterized in that described method also comprises:

By the antenna port in the different antennae port set, gather on the subcarrier that comprises to the described control signaling of described user device transmissions at second subcarrier, described second subcarrier is gathered by being used for control channel among the PRB but can not be formed for the part or all of subcarrier of transmission DM RS, and in described second subcarrier set, it is staggered in time domain and/or frequency domain to transmit the employed RE of described control signaling by the antenna port in the different antennae port set.

9. method according to claim 8 is characterized in that, and is described by the antenna port in the different antennae port set, to the described control signaling of described user device transmissions, comprising on the subcarrier that the set of second subcarrier comprises:

By the different antenna port in the different antennae port set, to the described control signaling of described user device transmissions, and it is staggered in time domain and/or frequency domain to transmit the employed RE of described control signaling by the different antenna port in the same antenna port set on the subcarrier that the set of described second subcarrier comprises.

10. a method that detects the control signaling is characterized in that, comprising:

According to first antenna port that is used for control channel, determine to be used for accordingly with described first antenna port first subcarrier of transmission demodulated reference signal DM RS;

The resource that is used for the described control signaling of transmission in described first subcarrier detects the described control signaling of network equipment transmission.

11. method according to claim 10 is characterized in that, described method also comprises:

12. method according to claim 10 is characterized in that, described first subcarrier of determining to be used for accordingly with described first antenna port transmission demodulated reference signal DM RS comprises:

The described resource that is used for the described control signaling of transmission in described first subcarrier detects the described control signaling of network equipment transmission, comprising:

By the antenna port in the described first antenna port group, the resource that is used for the described control signaling of transmission in described first subcarrier detects described control signaling.

13. method according to claim 12 is characterized in that, the antenna port that the described first antenna port group comprises uses identical Resource Unit RE to be used for the transmission of described DM RS.

14. method according to claim 12 is characterized in that, describedly will be described be defined as described first subcarrier with the corresponding subcarrier of the described first antenna port group in the set of first subcarrier, comprising:

15. method according to claim 12 is characterized in that, described method also comprises:

On continuous sub-carriers on every N the frequency that described first subcarrier set comprises, receive the described DM RS of described network equipment transmission respectively by the antenna port in the N group antenna port group, wherein N is natural number;

Described DM RS according to receiving obtains channel estimating information;

The described resource that is used for the described control signaling of transmission in described first subcarrier detects described control signaling, comprising:

By the antenna port in the described first antenna port group and according to described channel estimating information, the resource that is used for the described control signaling of transmission in described first subcarrier detects described control signaling.

16. method according to claim 12 is characterized in that, the described resource that is used for the described control signaling of transmission in described first subcarrier detects described control signaling, comprising:

By the different antenna port in the described first antenna port group, the resource that is used for the described control signaling of transmission in described first subcarrier detects described control signaling, and it is staggered in time domain and/or frequency domain wherein to transmit the employed RE of described control signaling by the different antenna port in the described first antenna port group.

17. according to each described method in the claim 10 to 16, it is characterized in that described method also comprises:

By the antenna port in the different antennae port set, the subcarrier that comprises in the set of second subcarrier detects the described control signaling that the described network equipment transmits, described second subcarrier is gathered by being used for control channel among the PRB but can not be formed for the part or all of subcarrier of transmission DM RS, and in described second subcarrier set, it is staggered in time domain and/or frequency domain to transmit the employed RE of described control signaling by the antenna port in the different antennae port set.

18. method according to claim 17 is characterized in that, and is described by the antenna port in the different antennae port set, the subcarrier that comprises in the set of second subcarrier detects the described control signaling that the described network equipment transmits, and comprising:

By the different antenna port in the different antennae port set, the subcarrier that comprises in described second subcarrier set detects described control signaling, and it is staggered in time domain and/or frequency domain to transmit the employed RE of described control signaling by the different antenna port in the same antenna port set.

19. a network equipment is characterized in that, comprising:

First determination module is used for determining employed first antenna port of control channel;

Second determination module is used for described first antenna port definite according to described first determination module, determines to be used for accordingly with described first antenna port first subcarrier of transmission demodulated reference signal DM RS;

Mapping block is used for described control signaling is mapped to the resource that definite described first subcarrier of described second determination module is used for control channel;

First transport module is used on described first subcarrier to the described control signaling of user device transmissions.

20. the network equipment according to claim 19, it is characterized in that, described first determination module also is used for: determine described first antenna port at least two antenna ports that are used for the described control signaling of transmission, the subcarrier difference that is used for transmission DM RS of different antenna port correspondences in described at least two antenna ports.

21. the network equipment according to claim 19 is characterized in that, described second determination module comprises:

First determining unit is used for according to described first antenna port, determines the first antenna port group that described first antenna port is affiliated;

Second determining unit, be used for gathering at formed first subcarrier of part or all of subcarrier that is used for transmission DM RS that a Physical Resource Block PRB comprises, will be defined as described first subcarrier with the corresponding subcarrier of the described first antenna port group in described first subcarrier set;

Described first transport module also is used for: by the antenna port of the described first antenna port group, on described first subcarrier to the described control signaling of described user device transmissions.

22. the network equipment according to claim 21 is characterized in that, the antenna port that the described first antenna port group comprises uses identical Resource Unit RE to be used for the transmission of described DM RS.

23. the network equipment according to claim 21 is characterized in that, described second determining unit comprises:

First determines subelement, is used for gathering the quantity subcarrier group identical with the quantity of antenna port group that comprises at described first subcarrier, and the subcarrier group that sequence number is identical with the sequence number of the described first antenna port group is defined as the first subcarrier group;

Second determines subelement, and the subcarrier that is used for the described first subcarrier group is comprised is defined as described first subcarrier.

24. the network equipment according to claim 21 is characterized in that, the described network equipment also comprises:

Second transport module is used for continuous sub-carriers on every N the frequency that described first subcarrier set comprises, organizes antenna port in the antenna port group to the described DM RS of described user device transmissions by N respectively, and wherein N is natural number.

25. the network equipment according to claim 21, it is characterized in that, described first transport module also is used for: by the different antenna port of the described first antenna port group, to the described control signaling of described user device transmissions, and it is staggered at time domain and/or frequency domain to transmit the employed RE of described control signaling by the different antenna port in the described first antenna port group on described first subcarrier.

26. according to each described network equipment in the claim 19 to 25, it is characterized in that the described network equipment also comprises:

The 3rd transport module, be used for the antenna port by the different antennae port set, gather on the subcarrier that comprises to the described control signaling of described user device transmissions at second subcarrier, described second subcarrier is gathered by being used for control channel among the PRB but can not be formed for the part or all of subcarrier of transmission DM RS, and in described second subcarrier set, it is staggered in time domain and/or frequency domain to transmit the employed RE of described control signaling by the antenna port in the different antennae port set.

27. the network equipment according to claim 26, it is characterized in that, described the 3rd transport module also is used for: by the different antenna port of different antennae port set, to the described control signaling of described user device transmissions, and it is staggered in time domain and/or frequency domain to transmit the employed RE of described control signaling by the different antenna port in the same antenna port set on the subcarrier that the set of described second subcarrier comprises.

28. a subscriber equipment is characterized in that, comprising:

First determination module is used for according to first antenna port that is used for control channel, determines to be used for accordingly with described first antenna port first subcarrier of transmission demodulated reference signal DM RS;

First detection module, described first subcarrier that is used for determining at described first determination module is used for the resource of the described control signaling of transmission, detects the described control signaling of network equipment transmission.

29. subscriber equipment according to claim 28 is characterized in that, described subscriber equipment also comprises:

Second determination module is used for determining described first antenna port at least two antenna ports that are used for the described control signaling of transmission, the subcarrier difference that is used for transmission DM RS of different antenna port correspondences in described at least two antenna ports.

30. subscriber equipment according to claim 28 is characterized in that, described first determination module comprises:

Described first detection module also is used for: by the antenna port of the described first antenna port group, the resource that is used for the described control signaling of transmission in described first subcarrier detects described control signaling.

31. subscriber equipment according to claim 30 is characterized in that, the antenna port that the described first antenna port group comprises uses identical Resource Unit RE to be used for the transmission of described DM RS.

32. subscriber equipment according to claim 30 is characterized in that, described second determining unit comprises:

33. subscriber equipment according to claim 30 is characterized in that, described subscriber equipment also comprises:

Receiver module is used for continuous sub-carriers on every N the frequency that described first subcarrier set comprises, receives the described DM RS of described network equipment transmission respectively by the antenna port in the N group antenna port group, and wherein N is natural number;

Acquisition module is used for obtaining channel estimating information according to the described DM RS that receives;

Described first detection module also is used for: by the antenna port of the described first antenna port group and according to described channel estimating information, the resource that is used for the described control signaling of transmission in described first subcarrier detects described control signaling.

34. subscriber equipment according to claim 30, it is characterized in that, described first detection module also is used for: by the different antenna port of the described first antenna port group, the resource that is used for the described control signaling of transmission in described first subcarrier detects described control signaling, and it is staggered in time domain and/or frequency domain wherein to transmit the employed RE of described control signaling by the different antenna port in the described first antenna port group.

35. according to each described subscriber equipment in the claim 28 to 34, it is characterized in that described subscriber equipment also comprises:

Second detection module, be used for the antenna port by the different antennae port set, the subcarrier that comprises in the set of second subcarrier detects the described control signaling that the described network equipment transmits, described second subcarrier is gathered by being used for control channel among the PRB but can not be formed for the part or all of subcarrier of transmission DM RS, and in described second subcarrier set, it is staggered in time domain and/or frequency domain to transmit the employed RE of described control signaling by the antenna port in the different antennae port set.

36. method according to claim 17, it is characterized in that, described second detection module also is used for: by the different antenna port of different antennae port set, the subcarrier that comprises in described second subcarrier set detects described control signaling, and it is staggered in time domain and/or frequency domain to transmit the employed RE of described control signaling by the different antenna port in the same antenna port set.