WO2013135140A1

WO2013135140A1 - Resource notification and signalling demodulation method and device

Info

Publication number: WO2013135140A1
Application number: PCT/CN2013/072010
Authority: WO
Inventors: 拉盖施; 潘学明; 赵锐
Original assignee: 电信科学技术研究院
Priority date: 2012-03-12
Filing date: 2013-02-28
Publication date: 2013-09-19
Also published as: CN103313391B; CN103313391A

Abstract

Disclosed are a resource notification and signalling demodulation method and device, which relate to the technical field of wireless communications and are used for providing a control signalling demodulation solution capable of ensuring the effective utilization of resources and the configuration flexibility of a channel state information measurement reference signal (CSI-RS). In the present invention, a base station notifies a terminal of information on whether a configured resource element (RE) corresponding to each CSI-RS pattern is used for transmitting a control signalling, and according to the notification, the terminal determines an RE which is used for transmitting the control signalling, and demodulates the control signalling on the determined RE. The method can ensure the effective utilization of resources and the configuration flexibility of a CSI-RS.

Description

Resource notification and signaling demodulation method and device The present application claims priority to a Chinese patent application filed by the Chinese Patent Office, the application number, and the invention name "resource notification and signaling demodulation method and device" on the date of the year, The entire contents are incorporated herein by reference.

Technical field

The present invention relates to the field of wireless communications, and in particular, to a resource notification and signaling demodulation method and device. Background technique

FIG. 1 to FIG. 1C are resource configuration diagrams of channel state information measurement reference signals (CSI-RS) in a Long Term Evolution (LTE) system of Release 10 (Rel-10), and the configuration is applicable to subframe format 1 And 2. Figure la is a multiplexing mode under the 2-port. Each CSI-RS pattern used to carry the CSI-RS includes two resource elements (Resource Element, RE) labeled 0 and 1, respectively, and a total of 20 CSI- RS pattern; Figure lb is a multiplexing method under 4-port. Each CSI-RS pattern includes 4 REs labeled 0, 1, 2, 3, respectively, for a total of 10 CSI-RS patterns; Figure lc is for 8 ports. The multiplexing mode, each CSI-RS pattern includes 8 REs labeled 0, 1, 2, 3, 4, 5, 6, and 7, respectively, and there are 5 CSI-RS patterns.

2a to 2c are schematic diagrams of resource configuration of a CSI-RS in an LTE system of the Rel-10. The configuration is applicable only to the subframe format 2, wherein FIG. 2a is a multiplexing mode under the 2-port, and each CSI-RS The pattern includes 2 REs labeled 0, 1 respectively, and there are 12 CSI-RS patterns; Figure 2b shows the multiplexing mode under 4 ports, and each CSI-RS pattern includes 0, 1, 2, 3 respectively. 4 REs, a total of 6 CSI-RS patterns; Figure 2c is a multiplexing mode under 8 ports, each CSI-RS pattern includes 8 labeled 0, 1, 2, 3, 4, 5, 6, and 7, respectively RE, there are 3 CSI-RS patterns.

Table 1 below shows the CSI-RS resource configuration table in the 36.211 protocol, where the first 20 configurations are applicable to the subframe formats 1 and 2, corresponding to the configuration of FIG. 1 to FIG. 1; the last 12 configurations are only for the subframe format 2 Applicable, corresponding to the configuration of Figures 2a to 2c. Where ^ denotes the sequence number of the subcarrier, denotes the sequence number of the Orthogonal Frequency Division Multiplexing (OFDM) symbol, and the result is the slot number, ( ) and "determines the corresponding CSI-RS configuration (ie CSI-RS pattern) Resource location.

2 (9,2) (9,2) (9,2) 1

^{1 1} ¹¹

3 (7,2) 1 (7,2) 1 (7,2) 1

4 (9,5) 1 (9,5) 1 (9,5) 1

5 (8,5) (8,5)

6 (10,2) 1 (10,2) 1

7 (8,2) 1 (8,2) 1

8 (6,2) 1 (6,2) 1

9 (8,5) 1 (8,5) 1

10 (3,5) 0

11 (2,5) 0

12 (5,2) 1

13 (4,2) 1

14 (3,2) 1

15 (2,2) 1

16 (1,2) 1

17 (0,2) 1

18 (3,5) 1

19 (2,5) 1

Subframe 20 (11,1) 1 (ιι,ι) 1 (ιι,ι) 1 2 21 (9,1) 1 (9,1) 1 (9,1) 1

22 (7,1) 1 (7,1) 1 (7,1) 1

23 (10,1) 1 (ΐο,ΐ) 1

24 (8,1) 1 (8,1) 1

25 (6,1) 1 (6,1) 1

26 (5,1) 1

27 (4,1) 1

28 (3,1) 1

29 (2,1) 1

30 (1,1) 1

31 (0,1) 1

Table 1 The base station needs to separately configure the number of ports of the CSI-RS and the non-zero power CSI-RS pattern for each terminal (User Equipment, UE), and the non-zero power CSI-RS pattern carries the CSI-RS sent by the base station. This may result in different resource locations occupied by CSI-RSs of different UEs.

The base station may also configure a zero-power CSI-RS pattern for each UE by using Radio Resource Control (RRC) signaling, that is, zero-power (Chip-Power) CSI-RS signaling, which is configured according to a 4-port CSI-RS configuration. The zero-power CSI-RS pattern does not carry any signals. When a 4-port CSI-RS pattern is configured as a zero-power CSI-RS pattern, the UE considers that the base station does not transmit Physical Downlink Shared Channel (PDSCH) data on the RE in the CSI-RS pattern.

When transmitting control signaling, if only the resources of the PDSCH are not considered in consideration of the CSI-RS pattern, resource waste is caused.

If the control signaling is sent by using the unoccupied CSI-RS pattern, since the UE does not know the location of the non-zero power CSI-RS pattern and the zero-power CSI-RS pattern of other UEs from the perspective of one UE, The UE cannot determine which REs its own control signaling is mapped on, so as to affect the demodulation performance of the control signaling. One way to avoid this problem is for the base station to permanently overlap the location of the non-zero power CSI-RS pattern and the zero-power CSI-RSUE pattern for all UEs, but this will reduce the flexibility of the system. Summary of the invention

The embodiment of the invention provides a resource notification and signaling demodulation method and device, which are used to provide a control signaling demodulation scheme capable of ensuring efficient resource utilization and CSI-RS configuration flexibility.

A resource notification method, the method comprising:

Determining, by the base station, whether the resource unit RE corresponding to the configured channel state information measurement reference signal CSI-RS pattern is currently used for transmitting control signaling;

The base station notifies the terminal of the determination result.

A signaling demodulation method, the method comprising:

Receiving, by the terminal, each channel state information measurement reference signal from the base station, whether the resource unit RE corresponding to the CSI-RS pattern is currently used for transmitting the control signaling notification;

The terminal determines an RE that is used to transmit control signaling according to the notification, and demodulates the control signaling on the determined RE. A base station, the base station comprising:

a determining unit, configured to determine whether each of the configured channel state information measurement reference signals, the resource unit RE corresponding to the CSI-RS pattern, is currently used for transmitting control signaling;

a notification unit, configured to notify the terminal of the determination result.

A terminal, the terminal comprising:

a receiving unit, configured to receive, according to each channel state information measurement reference signal CSI-RS pattern from the base station Whether the source unit RE is currently used to transmit control signaling notifications;

And a demodulating unit, configured to determine an RE used for transmitting control signaling according to the notification, and demodulate the control signaling on the determined RE.

In this solution, the base station notifies the terminal whether the RE corresponding to each configured CSI-RS pattern is used for transmitting control signaling, and the terminal determines the RE used for transmitting control signaling according to the notification, and determines the RE. The demodulation control signaling is used, and the base station can use the RE transmission control signaling corresponding to the CSI-RS pattern to ensure efficient use of resources, and at the same time, whether the base station uses the RE corresponding to the CSI-RS pattern. The information about the transmission control signaling is notified to the terminal, and the terminal may determine, according to the notification, which REs are mapped with their own control signaling, without passing through a non-zero power CSI-RS pattern and a zero-power CSI-RSUE pattern for all terminals. The locations are overlapped to allow the terminal to know which REs are mapped with their own control signaling, thereby ensuring flexibility in non-zero power CSI-RS patterns and zero-power CSI-RSUE pattern configurations. DRAWINGS

FIG. 1B is a schematic diagram of a CSI-RS configuration of a 2-port applicable to subframe formats 1 and 2 in the prior art; FIG. 1b is a schematic diagram of a CSI-RS configuration of a 4-port applicable to subframe formats 1 and 2 in the prior art; Figure lc is a schematic diagram of an 8-port CSI-RS configuration applicable to subframe formats 1 and 2 in the prior art; Figure 2a is a schematic diagram of a CSI-RS configuration of a 2-port only applicable to subframe format 2 in the prior art;

2b is a schematic diagram of a CSI-RS configuration of a 4-port only applicable to the subframe format 2 in the prior art;

2c is a schematic diagram of a CSI-RS configuration of an 8-port that is only applicable to the subframe format 2 in the prior art;

FIG. 3 is a schematic flowchart of a method according to an embodiment of the present disclosure;

4 is a schematic flowchart of another method according to an embodiment of the present invention;

FIG. 5a is a schematic diagram of a CSI-RS configuration according to Embodiment 1 of the present invention; FIG.

FIG. 5b is a schematic diagram of a CSI-RS configuration according to Embodiment 2 of the present invention; FIG.

FIG. 6 is a schematic structural diagram of a device according to an embodiment of the present disclosure;

FIG. 7 is a schematic structural diagram of another device according to an embodiment of the present invention. detailed description

In order to ensure efficient use of resources and flexibility of CSI-RS configuration, the embodiment of the present invention provides a resource notification and control signaling demodulation method.

Referring to FIG. 3, the resource notification method provided by the base station side includes the following steps: Step 30: The base station determines whether the RE corresponding to each configured CSI-RS pattern is currently used for transmission control signaling; If the RE corresponding to the RS pattern is not configured as the non-zero power CSI-RS pattern and the zero-power CSI-RS pattern of the UE in the current cell, the CSI-RS pattern may be used for transmission control signaling, if CSI-RS Corresponding to the pattern The RE is configured as a non-zero power CSI-RS pattern or a zero-power CSI-RS pattern for the UE within the current cell, and the CSI-RS pattern may not be used for transmission control signaling.

Step 31: The base station notifies the terminal of the determination result.

Specifically, in step 31, the base station notifies the terminal of the determination result, and the following two methods are used: First, the base station sends high-level signaling to the terminal; the high-level signaling corresponds to the CSI of each configured 2-port. The RS pattern (i.e., the CSI-RS pattern in Figure la and Figure 2a) contains bits indicating whether the RE corresponding to the CSI-RS pattern is used for transmission control signaling.

Second, the base station separately sends zero-power CSI-RS pattern indication signaling and high-layer signaling to the terminal, where the zero-power CSI-RS pattern indicates signaling corresponding to each configured 4-port CSI-RS pattern (ie, Figure lb and Figure 2b CSI-RS pattern).

Preferably, the zero-power CSI-RS pattern indication signaling includes a first bit indicating whether to transmit control signaling on the RE corresponding to the CSI-RS pattern; the high-level signaling corresponds to the zero-power CSI- Each of the first bits in the RS pattern indication signaling includes a second bit; and,

When the first bit indicates that the control signaling is transmitted on the RE corresponding to the CSI-RS pattern, the second bit corresponding to the first bit indicates that the control signaling is transmitted on each RE corresponding to the CSI-RS pattern or There is no transmission control signaling on the partial RE (may also be the transmission control signaling on the partial RE); when the first bit indicates that there is no transmission control signaling on the RE corresponding to the CSI-RS pattern, the first bit corresponds to the first bit. The two bits indicate that there is no transmission control signaling on each RE corresponding to the CSI-RS pattern or that there is no transmission control signaling on some REs (may also be transmission control signaling on part of the RE).

Specifically, when the first bit indicates that the control signaling is transmitted on the RE corresponding to the CSI-RS pattern, the second bit corresponding to the first bit indicates that the control signal is transmitted on each RE corresponding to the CSI-RS pattern. The transmission control signaling is not transmitted on the upper two REs (that is, the two REs with larger subcarrier numbers) corresponding to the CSI-RS pattern. Of course, the lower two REs may be used. There is no transmission control signaling on both REs;

When the first bit indicates that there is no transmission control signaling on the RE corresponding to the CSI-RS pattern, the second bit corresponding to the first bit indicates that there is no transmission control signaling on each RE corresponding to the CSI-RS pattern. Or the lower two REs corresponding to the CSI-RS pattern (that is, the two REs with smaller subcarrier numbers) have no transmission control signaling. Of course, the upper two REs (that is, the two subcarrier numbers are larger) There is no transmission control signaling on the RE).

Specifically, for each group of CSI-RS subframe periods and offsets configured for the terminal, the base station needs to perform steps 30 to 31, that is, perform step determination to configure the configuration. Whether the RE corresponding to each CSI-RS pattern is currently used for transmitting control signaling, and notifying the terminal of the determination result; or

For the multiple sets of CSI-RS subframe periods and offsets configured for the terminal, the base station only needs to perform steps 30 to 31, that is, whether the RE corresponding to each configured CSI-RS pattern is used for transmission control signaling. The result is notified to the terminal. In step 31, the base station may notify the terminal of the determination result by using a subframe period and an offset when the zero-power CSI-RS pattern and the non-zero-power CSI-RS pattern are configured.

The high layer signaling in the method may be radio resource control (RRC) signaling or the like.

Referring to FIG. 4, the signaling demodulation method provided by the terminal side of the present invention includes the following steps: Step 40: The terminal receives whether the RE corresponding to each configured CSI-RS pattern from the base station is currently used for transmission control signaling. announcement of;

Step 41: The terminal determines an RE used for transmitting control signaling according to the notification, and demodulates the control signaling on the determined RE.

As an implementation manner, in step 40, the terminal receives the notification that the RE corresponding to each configured CSI-RS pattern of the base station is currently used for transmitting control signaling, and the specific implementation may be as follows:

The terminal receives the high-level signaling sent by the base station, where the CSI-RS pattern corresponding to each configured port of the high-layer signaling includes a bit indicating whether the RE corresponding to the CSI-RS pattern is used for transmitting control signaling. Bit

Correspondingly, the terminal 41 determines, according to the notification, an RE that is used for transmitting control signaling, and the specific implementation may be as follows:

For each bit in the received high layer signaling, the terminal determines that the bit is an indication that the RE corresponding to the corresponding CSI-RS pattern is used for transmission control signaling or is not used for transmission control signaling, if it is used For transmission control signaling, all REs corresponding to the CSI-RS pattern are determined as REs used for transmission control signaling.

As another implementation manner, in step 40, the terminal receives the notification that the RE corresponding to each configured CSI-RS pattern of the base station is currently used for transmitting control signaling, and the specific implementation may be as follows:

The terminal receives zero-power CSI-RS pattern indication signaling and high-layer signaling respectively sent by the base station; wherein, the zero power

The CSI-RS pattern corresponding to each configured 4-port in the CSI-RS pattern indication signaling includes a first bit indicating whether to transmit control signaling on the RE corresponding to the CSI-RS pattern; Corresponding to the first bit in the zero-power CSI-RS pattern indication signaling, including the second bit; and, when the first bit indicates the transmission of the control signaling on the RE corresponding to the CSI-RS pattern, The second bit corresponding to the first bit indicates that the control signaling is transmitted on each RE corresponding to the CSI-RS pattern or there is no transmission control signaling on the partial RE (may also be the transmission control signaling on the partial RE); When the first bit indicates that there is no transmission control signaling on the RE corresponding to the CSI-RS pattern, the second bit corresponding to the first bit indicates that there is no transmission control signaling on each RE corresponding to the CSI-RS pattern. Or there is no transmission control signaling on some REs (may also be transmission control signaling on some REs);

For each first bit in the received zero-power CSI-RS pattern indication signaling, the terminal determines that the first bit is a transmission control signaling on the RE corresponding to the corresponding CSI-RS pattern or has no transmission control. Signaling

If the first bit indicates the transmission control signaling, according to the second ratio corresponding to the first bit in the higher layer signaling The special bit determines that the control signaling is transmitted on each RE corresponding to the CSI-RS pattern or that there is no transmission control signaling on the partial RE. If the control signaling is transmitted, all the REs corresponding to the CSI-RS pattern are determined as The RE that is used to transmit the control signaling; if there is no transmission control signaling on the part of the RE, the other REs other than the partial REs without the transmission control signaling corresponding to the CSI-RS pattern are determined to be used for the transmission control. Signaling RE;

If the first bit indicates that there is no transmission control signaling, determining, according to the second bit of the first bit in the higher layer signaling, that there is no transmission control signaling on each RE corresponding to the CSI-RS pattern or If there is no transmission control signaling on the part of the RE, if there is no transmission control signaling on the part of the RE, the other REs corresponding to the part of the RE without the transmission control signaling corresponding to the CSI-RS pattern are determined to be used for transmission control. Signaling RE.

Specifically, when the first bit indicates that the control signaling is transmitted on the RE corresponding to the CSI-RS pattern, the second bit corresponding to the first bit indicates that the control signal is transmitted on each RE corresponding to the CSI-RS pattern. There is no transmission control signaling on the upper two REs corresponding to the CSI-RS pattern. Of course, there may be no transmission control signaling on the lower two REs;

When the first bit indicates that there is no transmission control signaling on the RE corresponding to the CSI-RS pattern, the second bit corresponding to the first bit indicates that there is no transmission control signaling on each RE corresponding to the CSI-RS pattern. Or there is no transmission control signaling on the lower two REs corresponding to the CSI-RS pattern. Of course, there may be no transmission control signaling on the upper two REs.

In the method, the high layer signaling may be RRC signaling or the like.

The present invention will be described below in conjunction with specific embodiments:

The present invention communicates with a higher layer signaling that a certain UE control signaling is mapped to a physical resource block (PRB) in a subframe configured with a non-zero power CSI-RS pattern and/or a zero-power CSI-RS pattern. Which of the REs are on the inside.

One method is to use a bitmap (bit bitmap) method to inform the UE whether each CSI-RS pattern is used for transmission control signaling. For example: 20 bits represent the CSI-RS patterns of all 2 ports in Figure l a, each bit corresponds to a set of REs marked as (0, 1); the other 12 bits represent the 2 port CSI-RS pattern in Figure 2a. A bit is 1 (or 0), indicating that the corresponding CSI-RS pattern is configured as a non-zero power CSI-RS pattern or a zero-power CSI-RS pattern, which cannot be used for transmission control signaling; a bit is 0 (or 1) Representing the corresponding CSI-RS pattern can be used for transmission control signaling. In this way, a certain UE can know exactly which REs the control signaling is mapped to in a PRB pair.

Another method is to notify the UE whether each CSI-RS pattern is used for transmission control signaling in combination with a zero-power CSI-RS pattern indication letter ZeroPowerCSI-RS. It has been stipulated in the existing protocol that the zero-power CSI-RS pattern is configured according to the 4-port CSI-RS, that is, in the zero-power CSI-RS pattern indication signaling, the CSI-RS pattern of each 4-port in Figure lb Corresponding to 1 bit, the bit is 1, which means that the CSI-RS pattern is configured as a zero-power CSI-RS pattern (no data is transmitted), and the bit is 0, indicating that the CSI-RS pattern is not configured to be a zero-power CSI. -RS pattern (with data transmission), a total of 10 bits are required; in addition, in the zero-power CSI-RS pattern indication signaling, each of the 4 ports in Figure 2b The CSI-RS pattern corresponds to 1 bit, and the bit is 1, indicating that the CSI-RS pattern is configured as a zero-power CSI-RS pattern (no data is transmitted), and the bit is 0, indicating that the CSI-RS pattern is not configured. A zero-power CSI-RS pattern (with data transmission) requires a total of 6 bits; then there are a total of 16 bits in the zero-power CSI-RS pattern indication signaling.

The base station configures a zero-power CSI-RS pattern for a certain UE according to the number of CSI-RS ports of multiple UEs in the cell or the interference avoidance angle of the neighboring cell. That is to say, because the base station configures the zero-power CSI-RS pattern based on the 4-port CSI-RS configuration, it is possible that the location of a 2-port CSI-RS pattern is not indicated, or a 2-port CSI- It is redundant for the RS pattern to be configured to not send data.

To this end, the base station can configure a bit in the ZeroPowerCSI-RS signaling to be 1, and the data is not transmitted on the CSI-RS pattern corresponding to the 4-port corresponding to the bit, and the CSI-RS pattern is notified by using another indication bit. The 4 REs do not transmit data or there are 2 REs that have transmission data. If the indication bit is 1, then there is no data transmission on the 4 REs. If the bit is 0, it means only 4 of the REs. There are no data transmissions for the 2 REs below. Similarly, if the base station can configure a certain bit in the ZeroPowerCSI-RS signaling to be 0, the 4 REs representing the 4-port CSI-RS pattern corresponding to the bit have transmission data, and another indication bit is used to inform 4 Whether there is transmission data on RE or transmission data on two REs, if the indication bit is 1, then there is data transmission on behalf of 4 REs. If the bit is 0, it represents the upper 2 of 4 REs. There is no data transmission on the RE. This scheme requires that if only some of the 4 REs of the 4-port CSI-RS pattern do not transmit data, when the base station configures whether a bit in the ZeroPowerCSI-RS signaling is set to 1 or 0, the corresponding 4-port CSI needs to be considered. - The 2 REs below the RS pattern or the 2 REs above do not transmit data.

Embodiment 1:

According to the above method 1, a 32-bit bitmap is used to indicate whether a control signal is transmitted on the RE of a CSI-RS pattern.

There are 32 2-port CSI-RS patterns in Figure la and Figure 2a. It is possible to use a 32-bit bitmap to indicate whether control signaling is transmitted on the RE of each CSI-RS pattern. A bit is 1 (or 0), which is used to transmit (or not transmit) control signaling on the RE of the CSI-RS pattern corresponding to the bit.

Step 1: The base station determines that the CSI-RS patterns of the two ports corresponding to configurations 0, 1, and 12 in Table 1 are not used for transmission control signaling, and the other two ports of CSI-RS patterns are used for transmission control signaling, as shown in Figure 5a. Show

Step 2: The base station sends high layer signaling to the UE, where the 32-bit bitmap is as follows:

{ 1 , 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 , 0, 0, 0, 0, 0, 0, 0};

Step 3: The terminal receives high layer signaling from the base station;

Step 4: The terminal determines, according to the 32-bit bitmap in the high layer signaling, that the REs of the other two ports of the CSI-RS pattern except the CSI-RS patterns of the two ports corresponding to the configurations 0, 1, and 12 in Table 1 are used. Transmission control signaling, demodulating control signaling on the RE for transmitting control signaling. Embodiment 2:

According to the above method 2, the zero-power CSI-RS pattern indication signaling is used to indicate whether the control signaling is transmitted on the RE of a certain CSI-RS pattern.

Step 1: The base station determines that the upper two REs (REs marked with 0, 1) of the 4-port CSI-RS pattern corresponding to configuration 0 in Table 1 do not transmit control signaling, and the lower two REs (labeled 2, 3) RE) transmission control signaling; the upper 2 REs (REs marked with 0, 1) of the 4-port CSI-RS pattern corresponding to configuration 1 in Table 1 are transmitted with control signaling, and the lower 2 REs (labeled 2, 3) RE) does not transmit control signaling; 4 REs of the 4-port CSI-RS pattern corresponding to configuration 6 in Table 1 do not transmit control signaling; RE transmission control signals of other 4 port CSI-RS patterns in Table 1 Order; as shown in Figure 5b;

Step 2: The base station sends ZeroPowerCSI-RS signaling and new high layer signaling to the UE respectively.

The bits included in ZeroPowerCSI-RS signaling are as follows: {0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0,

0, 0, 0, 0 } , the bits contained in another new high-level signaling are as follows: {0, 0, 1 , 1 , 1, 1, 1, 1, 1

1 , 1 , 1 , 1 , 1 , 1 , 1 };

Step 3: The UE receives ZeroPower CSI-RS signaling from the base station and new high layer signaling.

Step 4: The UE determines, according to the first bit in the ZeroPowerCSI-RS signaling, that the transmission control signaling is transmitted on the four REs of the four-port CSI-RS pattern corresponding to the bit, according to the first one of the corresponding higher layer signaling. The bit is 0, further determining that the upper two REs of the four REs do not transmit control signaling, and the lower two REs transmit control signaling;

According to the second bit in the ZeroPowerCSI-RS signaling, the control signal is not transmitted on the four REs of the four-port CSI-RS pattern corresponding to the bit, and the second bit in the corresponding higher layer signaling is 0. Further determining that the lower two REs of the four REs do not transmit control signaling, and the upper two REs transmit control signaling;

According to the seventh bit in the ZeroPowerCSI-RS signaling, the control signal is not transmitted on the four REs of the four-port CSI-RS pattern corresponding to the bit, and the second bit in the corresponding higher layer signaling is 1 Further determining that the four REs do not transmit control signaling;

According to the other bits in the ZeroPowerCSI-RS signaling, the transmission control signaling on the four REs of the 4-port CSI-RS pattern corresponding to the bit is determined, and the bit in the corresponding high-layer signaling is 1, further determining the 4 Each RE transmits control signaling.

Referring to FIG. 6, an embodiment of the present invention provides a base station, where the base station includes:

a determining unit 50, configured to determine whether a RE corresponding to each configured CSI-RS pattern is currently used to transmit a control signaling;

The notification unit 51 is configured to notify the terminal of the determination result.

Further, the notification unit 51 is configured to:

Sending high layer signaling to the terminal;

The CSI-RS pattern corresponding to each configured 2 port in the high layer signaling includes the pair indicating the CSI-RS pattern Whether the RE should be used to transmit the bits of control signaling.

Further, the notification unit 51 is configured to:

Transmitting zero-power CSI-RS pattern indication signaling and high-level signaling to the terminal respectively;

The CSI-RS pattern corresponding to each configured 4-port in the zero-power CSI-RS pattern indication signaling includes a first bit indicating whether the control signaling is transmitted on the RE corresponding to the CSI-RS pattern;

Each of the first bits in the high-level signaling corresponding to the zero-power CSI-RS pattern indication signaling includes a second bit;

When the first bit indicates that the control signaling is transmitted on the RE corresponding to the CSI-RS pattern, the second bit corresponding to the first bit indicates that the control signaling is transmitted on each RE corresponding to the CSI-RS pattern or There is no transmission control signaling on the part of the RE; when the first bit indicates that there is no transmission control signaling on the RE corresponding to the CSI-RS pattern, the second bit corresponding to the first bit indicates that the CSI-RS pattern corresponds to each There is no transmission control signaling on all REs or no transmission control signaling on some REs.

Further, when the first bit indicates that the control signaling is transmitted on the RE corresponding to the CSI-RS pattern, the second bit corresponding to the first bit indicates that the control signal is transmitted on each RE corresponding to the CSI-RS pattern. There is no transmission control signaling on the upper two REs corresponding to the CSI-RS pattern;

When the first bit indicates that there is no transmission control signaling on the RE corresponding to the CSI-RS pattern, the second bit corresponding to the first bit indicates that there is no transmission control signaling on each RE corresponding to the CSI-RS pattern. Or there is no transmission control signaling on the lower two REs corresponding to the CSI-RS pattern.

Further, the determining unit 50 determines the RE corresponding to each configured CSI-RS pattern for each group of CSI-RS subframe periods and offsets in the CSI-RS subframe period and the offset configured to the terminal. Whether the current is used to transmit control signaling, the notification unit 51 notifies the terminal of each determination result; or

For determining a plurality of sets of CSI-RS subframe periods and offsets allocated to the terminal, the determining unit 50 determines whether an RE corresponding to each configured CSI-RS pattern is used for transmission control signaling, and the notification unit 51 determines The result is notified to the terminal.

Further, the high layer signaling is RRC signaling.

Referring to FIG. 7, an embodiment of the present invention provides a terminal, where the terminal includes:

The receiving unit 60 is configured to receive, by the base station, a notification that the RE corresponding to each CSI-RS pattern of the base station is currently used for transmitting control signaling;

The demodulation unit 61 is configured to determine an RE used for transmitting control signaling according to the notification, and demodulate the control signaling on the determined RE.

Further, the receiving unit 60 is configured to:

Receiving high-level signaling sent by the base station, where the CSI-RS pattern corresponding to each configured port of the high-layer signaling includes a bit indicating whether the RE corresponding to the CSI-RS pattern is used for transmitting control signaling Bit The demodulation unit 61 is configured to:

For each bit in the high layer signaling, the terminal determines that the bit is an indication that the RE corresponding to the corresponding CSI-RS pattern is used for transmission control signaling or is not used for transmission control signaling, if it is used for Transmit control signaling, then all REs corresponding to the CSI-RS pattern are determined as REs used for transmission control signaling.

Further, the receiving unit 60 is configured to:

Receiving zero-power CSI-RS pattern indication signaling and high-layer signaling respectively sent by the base station; wherein, the CSI-RS pattern corresponding to each configured 4-port in the zero-power CSI-RS pattern indication signaling includes a representation Whether the first bit of the control signaling is transmitted on the RE corresponding to the CSI-RS pattern; and each of the first bits in the high-level signaling corresponding to the zero-power CSI-RS pattern indication signaling includes a second bit; when the first bit indicates that the control signaling is transmitted on the RE corresponding to the CSI-RS pattern, the second bit corresponding to the first bit indicates that the transmission control is performed on each RE corresponding to the CSI-RS pattern. There is no transmission control signaling on the signaling or part of the RE; when the first bit indicates that there is no transmission control signaling on the RE corresponding to the CSI-RS pattern, the second bit corresponding to the first bit represents the CSI-RS There is no transmission control signaling on each RE corresponding to the pattern or no transmission control signaling on some REs; the demodulation unit 61 is configured to:

For each first bit in the zero-power CSI-RS pattern indication signaling, the terminal determines that the first bit is a transmission control signaling on the RE corresponding to the corresponding CSI-RS pattern or no transmission control signaling. ;

If the first bit indicates the transmission control signaling, determining, according to the first bit, the second bit in the higher layer signaling, determining that the control signaling is transmitted on each RE corresponding to the CSI-RS pattern, or If there is no transmission control signaling on the part of the RE, if all the REs corresponding to the CSI-RS pattern are determined as the RE used for the transmission control signaling, if there is no transmission control signaling on the part of the RE, Determining, by the CSI-RS pattern, other REs other than the partial REs without transmission control signaling, as REs used for transmitting control signaling;

If the first bit indicates that there is no transmission control signaling, determining, according to the second bit corresponding to the first bit in the higher layer signaling, that there is no transmission control signaling on each RE corresponding to the CSI-RS pattern. Or there is no transmission control signaling on part of the RE; if there is no transmission control signaling on the part of the RE, the other REs corresponding to the part of the RE without the transmission control signaling corresponding to the CSI-RS pattern are determined to be used for transmission. Control signaling RE.

Further, the high layer signaling is RRC signaling.

In summary, the beneficial effects of the present invention include: In the solution provided by the embodiment of the present invention, the base station notifies the terminal whether the RE corresponding to each configured CSI-RS pattern is used for transmitting control signaling, and the terminal determines the RE used for transmitting control signaling according to the notification, And demodulating the control signaling on the determined RE, and using the scheme, the base station can use the RE transmission control signaling corresponding to the CSI-RS pattern to ensure effective use of resources, and at the same time, the base station maps the CSI-RS pattern Whether the RE is notified to the terminal by the information used for the transmission control signaling, the terminal can determine which REs are mapped with their own control signaling according to the notification, and does not need to pass the non-zero power CSI-RS pattern and zero for all terminals. The locations of the power CSI-RSUE patterns are overlapped to enable the terminal to know which REs are mapped with their own control signaling, thereby ensuring the flexibility of the non-zero power CSI-RS pattern and the zero-power CSI-RSUE pattern configuration.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each process and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

Although the preferred embodiment of the invention has been described, it will be apparent to those of ordinary skill in the art that <RTIgt; Therefore, the appended claims are intended to be construed as including the preferred embodiments and the modifications

It is apparent that those skilled in the art can make various modifications and variations to the invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and modifications of the invention

Claims

Rights request

A resource notification method, characterized in that the method comprises:

The base station notifies the terminal of the determination result.

The method according to claim 1, wherein the base station notifies the terminal of the determination result, the method specifically includes: the base station transmitting the high layer signaling to the terminal;

The CSI-RS pattern corresponding to each configured 2 port in the high layer signaling includes a bit indicating whether the RE corresponding to the CSI-RS pattern is used for transmission control signaling.

The method according to claim 1, wherein the base station notifies the terminal of the determination result, and the method includes: the base station separately transmitting zero-power CSI-RS pattern indication signaling and high-layer signaling to the terminal;

The zero-power CSI-RS pattern indicates signaling corresponding to each configured 4-port CSI-RS pattern.

The method according to claim 3, wherein the zero-power CSI-RS pattern indication signaling includes a first bit indicating whether to transmit control signaling on an RE corresponding to the CSI-RS pattern;

The method according to claim 4, wherein when the first bit indicates that the control signaling is transmitted on the RE corresponding to the CSI-RS pattern, the second bit corresponding to the first bit indicates the CSI- The control signaling for each RE corresponding to the RS pattern or the upper two REs corresponding to the CSI-RS pattern does not have transmission control signaling;

The method according to any one of claims 1 to 5, characterized in that, for each group of CSI-RS subframe periods and offsets configured for a terminal, a set of CSI-RS subframe periods and offsets, Determining, by the base station, whether the RE corresponding to each configured CSI-RS pattern is currently used for transmitting control signaling, and notifying the terminal of the determination result; or

For the multiple sets of CSI-RS subframe periods and offsets configured for the terminal, the base station determines whether the RE corresponding to each configured CSI-RS pattern is used for transmission control signaling, and notifies the terminal of the determination result.

The method according to any one of claims 2 to 5, wherein the higher layer signaling is radio resource control RRC signaling.

8. A signaling demodulation method, the method comprising:

The terminal determines an RE that is used to transmit control signaling according to the notification, and demodulates the control signaling on the determined RE.

The method according to claim 8, wherein the terminal receives the notification that the RE corresponding to the CSI-RS pattern of the configuration of the base station is currently used for transmitting the control signaling, and the method includes:

Receiving, by the terminal, the high-level signaling sent by the base station, where the CSI-RS pattern corresponding to each configured port of the high-layer signaling includes whether the RE corresponding to the CSI-RS pattern is used for transmitting control signaling. Bit

Determining, by the notification, the RE that is used to transmit the control signaling, specifically includes:

For each bit in the high layer signaling, the terminal determines whether the bit indicates that the RE corresponding to the corresponding CSI-RS pattern is used for transmission control signaling, and if used for transmission control signaling, the CSI- All REs corresponding to the RS pattern are determined to be REs used for transmission control signaling.

The method of claim 8, wherein the receiving, by the terminal, the notification that the RE corresponding to each configured CSI-RS pattern of the base station is currently used for transmitting control signaling includes:

The terminal receives the zero-power CSI-RS pattern indication signaling and the high-layer signaling respectively sent by the base station; wherein the zero-power CSI-RS pattern indicates the CSI-RS pattern corresponding to each configured 4-port in the signaling.

The method according to claim 10, wherein the zero-power CSI-RS pattern indication signaling includes a first bit indicating whether to transmit control signaling on an RE corresponding to the CSI-RS pattern;

When the first bit indicates that the control signaling is transmitted on the RE corresponding to the CSI-RS pattern, the second bit corresponding to the first bit indicates that the control signaling is transmitted on each RE corresponding to the CSI-RS pattern or There is no transmission control signaling on the part of the RE; when the first bit indicates that there is no transmission control signaling on the RE corresponding to the CSI-RS pattern, the second bit corresponding to the first bit indicates that the CSI-RS pattern corresponds to each There is no transmission control signaling on all REs or no transmission control signaling on some REs;

If the first bit indicates the transmission control signaling, determining, according to the first bit, the second bit in the higher layer signaling, determining that the control signaling is transmitted on each RE corresponding to the CSI-RS pattern, or There is no transmission control signaling on some REs, and if all control signaling is transmitted, all REs corresponding to the CSI-RS pattern are determined to be used for transmission control signals. If there is no transmission control signaling on the part of the RE, the REs corresponding to the partial REs without the transmission control signaling corresponding to the CSI-RS pattern are determined as the REs used for the transmission control signaling;

The method according to claim 11, wherein when the first bit indicates that the control signaling is transmitted on the RE corresponding to the CSI-RS pattern, the second bit corresponding to the first bit indicates the CSI- The control signaling for each RE corresponding to the RS pattern or the upper two REs corresponding to the CSI-RS pattern does not have transmission control signaling;

The method according to any one of claims 9-12, wherein the higher layer signaling is radio resource control RRC signaling.

A base station, the base station comprising:

The base station according to claim 14, wherein the notification unit is configured to:

Sending high layer signaling to the terminal;

The zero-power CSI-RS pattern indicates the CSI-RS pattern corresponding to each configured 4-port in the signaling.

The base station according to claim 16, wherein the zero-power CSI-RS pattern indication signaling includes a first bit indicating whether to transmit control signaling on an RE corresponding to the CSI-RS pattern;

When the first bit indicates that the control signaling is transmitted on the RE corresponding to the CSI-RS pattern, the second bit corresponding to the first bit indicates that the control signaling is transmitted on each RE corresponding to the CSI-RS pattern or There is no transmission control signaling on the part of the RE; when the first bit indicates that there is no transmission control signaling on the RE corresponding to the CSI-RS pattern, the second bit corresponding to the first bit indicates that the CSI-RS pattern corresponds to each No control signaling or part of the RE There is no transmission control signaling on the RE.

The base station according to claim 17, wherein when the first bit indicates that the control signaling is transmitted on the RE corresponding to the CSI-RS pattern, the second bit corresponding to the first bit indicates the CSI- The control signaling for each RE corresponding to the RS pattern or the upper two REs corresponding to the CSI-RS pattern does not have transmission control signaling;

The base station according to any one of claims 14 to 18, wherein, for each group of CSI-RS subframe periods and offsets configured for the terminal, a CSI-RS subframe period and an offset, Determining, by the determining unit, whether the RE corresponding to each configured CSI-RS pattern is currently used for transmitting control signaling, and the notification unit notifying the terminal of each determination result; or

Determining, by the determining unit, whether the RE corresponding to each configured CSI-RS pattern is used for transmission control signaling, and the notification unit notifies the determination result, for the multiple sets of CSI-RS subframe periods and offsets configured for the terminal. Give the terminal.

The base station according to any one of claims 15-18, wherein the higher layer signaling is radio resource control RRC signaling.

A terminal, wherein the terminal comprises:

a receiving unit, configured to receive, by the base station, each channel state information measurement reference signal from the base station, whether the resource unit RE corresponding to the CSI-RS pattern is currently used to transmit a control signaling notification;

The terminal according to claim 21, wherein the receiving unit is configured to:

Receiving high-level signaling sent by the base station, where the CSI-RS pattern corresponding to each configured port of the high-layer signaling includes a bit indicating whether the RE corresponding to the CSI-RS pattern is used for transmitting control signaling Bit

The demodulation unit is used to:

Receiving zero-power CSI-RS pattern indication signaling and high-layer signaling respectively sent by the base station; wherein the zero-power CSI-RS pattern indicates signaling corresponding to each configured 4-port CSI-RS pattern.

The terminal according to claim 23, wherein the zero-power CSI-RS pattern indication signaling includes a first bit indicating whether to transmit control signaling on an RE corresponding to the CSI-RS pattern; Each of the first bits in the high-level signaling corresponding to the zero-power CSI-RS pattern indication signaling includes a second bit; When the special bit indicates the transmission control signaling on the RE corresponding to the CSI-RS pattern, the second bit corresponding to the first bit indicates that the control signaling or the partial RE is transmitted on each RE corresponding to the CSI-RS pattern. There is no transmission control signaling; when the first bit indicates that there is no transmission control signaling on the RE corresponding to the CSI-RS pattern, the second bit corresponding to the first bit represents each RE corresponding to the CSI-RS pattern. There is no transmission control signaling or no transmission control signaling on some REs;

The demodulation unit is used to:

The terminal according to claim 24, wherein when the first bit indicates that the control signaling is transmitted on the RE corresponding to the CSI-RS pattern, the second bit corresponding to the first bit indicates the CSI- The control signaling for each RE corresponding to the RS pattern or the upper two REs corresponding to the CSI-RS pattern does not have transmission control signaling;

The terminal according to any one of claims 22-25, wherein the higher layer signaling is radio resource control RRC signaling.