WO2013107409A1

WO2013107409A1 - Communication method, device and system

Info

Publication number: WO2013107409A1
Application number: PCT/CN2013/070764
Authority: WO
Inventors: 栗忠峰; 彭炎; 卢建民; 毕皓
Original assignee: 华为技术有限公司
Priority date: 2012-01-21
Filing date: 2013-01-21
Publication date: 2013-07-25
Also published as: CN103220076A; CN103220076B

Abstract

Provided is a communication method, device and system. The method comprises: a channel quality indicator (CQI) reports a requesting method, a CQI reporting method, a common reference signal (CRS) resource indicating method and a CRS resource obtaining method. The device is a sender device or a receiver device. The system includes the sender device and the receiver device.

Description

The present application claims the priority of the Chinese application filed on Jan. 21, 2012, with the application number 201210019845.6, the name of the invention as "communication method, device and system", the entire contents of which are incorporated by reference. In the present application.

The present invention relates to communication technologies, and in particular, to a communication method, device, and system. BACKGROUND Current Third Generation Partnership Project (3 ^M Generation Partnership Project, referred to as: 3GPP) is discussing coordinated multipoint transmission (Coordinated multiple Point Transmission, referred to as: CoMP) technology. In the CoMP technology, there are multiple network node candidate sets on the network side. These candidate sets can be configured to user equipment (User Equipment, UE for short) in a certain resource form. This requires the UE to perform network node selection, especially dynamic selection of network nodes.

However, in the prior art, a user equipment (User Equipment, referred to as UE) only supports measuring a channel-state information reference signal (CSI-RS) configuration, and the CSI-RS configuration The network includes at least a CSI-RS antenna port number, a CSI-RS resource configuration, and a CSI-RS subframe configuration. Each network node sends its CSI-RS on a specific resource, and the UE configures the channel according to the CSI-RS configuration that supports measurement. The Quality Indicator (CQI) is used for measurement and evaluation. How to enable the UE in the prior art to support CQI measurement and reporting of multiple CSI-RS configurations is a problem to be solved by those skilled in the art.

SUMMARY OF THE INVENTION The present invention provides a communication method for enabling a UE to support CQI measurement and reporting of a multi-CSI-RS configuration, the communication method including four aspects. One of the aspects is the CQI 4 request method, including:

The sending end device sends a CQI report request message to the receiving end device, where the CQI reporting request message carries M channel state information reference signal CSI-RS configuration indications to indicate the The receiving end device performs CQI measurement and reporting according to the M CRI-RS configuration indications, where the M is a positive integer greater than or equal to 1.

Another aspect is the "3⁄4 method" on 〇01, including:

The receiving end device receives the CQI report request message sent by the sending end device, where the CQI reporting request message carries M CSI-RS configuration indications, where the M is a positive integer greater than or equal to 1;

And performing CQI measurement on at least one of the CSI-RS configurations indicated by the M CSI-RS configuration indications, and reporting the measurement result to the sending end device.

Another aspect is the indication method of CRS resources, including:

The CRS resource is carried in the notification message and sent to the receiving device, where the notification message is used to notify the receiving device to exclude the CRS resource from the PDSCH resource.

The fourth method is the method for obtaining CRC resources, including:

The receiving end device receives the CRS resource message sent by the sending end device, where the CRS resource message carries at least one transmitting node selected by the sending end device as the receiving end device in the node candidate set according to the received CQI measurement report reported by the receiving end device. Or a resource corresponding to the CRS when the transmitting device transmits the PDSCH in the current subframe;

Resource demapping is performed on the PDSCH message to obtain a resource set, and the resource obtained by excluding the CRS resource carried in the CRS resource message from the resource set is used as a resource of the PDSCH message.

The present invention provides a communication device for enabling a UE to support measurement and reporting of multiple CSI-RS configurations, which can be divided into four aspects. One of the aspects is the sender device, including:

a sending module, configured to send a CQI report request message to the receiving end device, where the CQI report request message carries M channel state information reference signal CSI-RS configuration indications, to indicate that the receiving end device is configured according to the M CRIs The -RS configuration indication performs CQI measurement and reporting, and the M is a positive integer greater than or equal to 1.

Another aspect of the device is a receiving device, including:

The receiving module is configured to receive a CQI report request message sent by the sending end device, where the CQI report request message carries M CSI-RS configuration indications, where the M is a positive integer greater than or equal to 1;

a measurement module, configured in the CSI-RS configuration of the M CSI-RS configuration indication indication Performing at least one CQI measurement;

The reporting module is configured to report the measurement result to the sending device.

Another aspect of the device is a sender device, including:

The notification module is configured to send the CRS resource to the receiving device in the notification message, where the notification message is used to notify the receiving device to exclude the CRS resource from the PDSCH resource.

The fourth aspect is the receiving device, including:

a receiving module, configured to receive a CRS resource message sent by the sending end device, where the CRS resource message carries at least one selected by the sending end device as the receiving end device in the node candidate set according to the received CQI measurement report reported by the receiving end device. a resource corresponding to the CRS when the transmitting node or the transmitting device transmits the PDSCH in the current subframe;

a determining module, configured to perform resource demapping on the PDSCH message, to obtain a resource set, and use the resource obtained by excluding the CRS resource carried in the CRS resource message from the resource set as a PDSCH message received by the receiving end device. Transfer resources.

The present invention provides a communication system comprising: a receiving end device and a transmitting end device as described above.

The technical effect of the present invention is: by configuring M CSI-RS configuration indications in the CQI report request message, and sending the configured CQI report request message to the receiving device, to instruct the receiving device to use the M CS I-RSs. The M CSI-RS configurations indicated by the configuration are used to perform CQI measurement and reporting, and the CQI measurement indication that the receiving end device supports multiple CSI-RS configurations is implemented. DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings to be used in the embodiments or the prior art description will be briefly described below. FIG. 1 is a flowchart of a CQI report request method according to Embodiment 1 of the present invention;

2 is a flowchart of a CQI reporting request method according to Embodiment 2 of the present invention;

3 is a flowchart of a CQI report request method according to Embodiment 3 of the present invention;

4 is a schematic diagram of bit bitmap scrambling according to Embodiment 4 of the present invention;

FIG. 5 is a flowchart of a CQI report request method according to Embodiment 5 of the present invention;

FIG. 6 is a flowchart of a CQI reporting method according to Embodiment 6 of the present invention; Figure Ί is a flowchart of a method for indicating a CRS resource provided by Embodiment 7 of the present invention;

8 is a flowchart of a method for obtaining a CRS resource according to Embodiment 8 of the present invention;

9 is a schematic structural diagram of a device at a transmitting end according to Embodiment 9 of the present invention;

10 is a schematic structural diagram of a device at a transmitting end according to Embodiment 10 of the present invention;

FIG. 11 is a schematic structural diagram of a device at a transmitting end according to Embodiment 11 of the present invention;

12 is a schematic structural diagram of a device at a transmitting end according to Embodiment 12 of the present invention;

13 is a schematic structural diagram of a receiving end device according to Embodiment 13 of the present invention;

14 is a schematic structural diagram of a device at a transmitting end according to Embodiment 14 of the present invention;

FIG. 15 is a schematic structural diagram of a receiving end device according to Embodiment 15 of the present invention;

16 is a schematic structural diagram of a communication system according to Embodiment 16 of the present invention.

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. The embodiments are a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The embodiments of the present invention provide a communication method between a sender device and a receiver device, and the method can be further divided into: a CQI report request method, a CQI report method, a CRS resource indication method, and a CRS resource obtaining method. The communication methods between the above-mentioned four types of the transmitting device and the receiving device are all under the same premise, that is, the UE in the prior art only supports the CQI measurement and reporting of the inherent CSI-RS configuration, but cannot support Multi-CSI-RS configuration, even CQI measurement and reporting of dynamic CSI-RS configuration. The sender device may be a network device, and the receiver device may be a user device. Of course, it can also be a user equipment, which is not limited herein. However, the description of the technical content of the present invention is made by taking the sending device as the network side device and the receiving device as the user device as an example. This communication method is closely related to CoMP technology. The communication methods between the above four types of sender devices and receiver devices can be, but are not limited to, the following network scenarios:

1, macro cell scene:

The macrocell scene can be divided into two cases, one is an N sector (or a virtual N sector), and the other is an Adaptive Antenna System (AAS). A N sector can be understood as a Cell-specific Reference Signal (CRS) resource or a CSI-RS configured with N sectors on the network side or UEs of N sectors. The CRS-based network node selection can be considered as the choice of a particular cell. CSI-based CQI measurement and reporting and node selection can be considered as port selection. The CRS is a reference signal related to a cell, that is, one cell corresponds to a specific CRS, and therefore, for the N sector, N CRSs are configured on the network side. The CRS uses the cell ID for scrambling. For CSI-RS, there is at least one CSI-RS configuration per sector or at least one CSI-RS configuration per sector, and its CSI-RS configuration can be configured for a specific UE. The CSI-RS configuration may include: one or more of a CSI-RS antenna port number, a CSI-RS resource configuration, a CSI-RS subframe configuration, a power, and a scrambling ID.

The virtual N sector is split into N virtual sectors by the area. A virtual sector can be thought of as being formed by certain sectors in the N sector having the same cell ID. The network side configures CRS or CSI-RS for N virtual sectors. The CRS is a reference signal related to the cell, that is, one cell corresponds to a specific CRS, so the CRS uses the cell ID to perform scrambling. In the virtual N sector, the UE configuration is smaller than N cells, that is, in the virtual N sector, the number of cells actually measured or detected by the UE is less than or equal to N, and it can be said that some sectors in the virtual N sector have the same Cell ID. Where N is a natural number, taking 6 as an example, the number of cells actually seen by the UE may be three or one. Therefore, the network side configures CRSs smaller than N cells. For CSI-RS, there is at least one CSI-RS configuration per virtual sector or at least one CSI-RS configuration per virtual sector. The CSI-RS configuration may include: one or more of a CSI-RS antenna port number, a CSI-RS resource configuration, a CSI-RS subframe configuration, a power, and a scrambling ID.

The AAS can be used under the N sector or virtual N sector of the fixed beam. The AAS can perform adaptive antenna beam transmission for a specific UE. It is assumed that the beams on the network side are classified into two types, a large beam and a small beam. The large beam has a wider lobe width relative to the beamlet, ie the large beam can cover more UEs relative to the beamlet. The large beam can be a sector or a virtual sectorized beam. Large beams and beamlets can be configured with different CSI-RS configurations. For example, they are called CSI-RS configuration 1 and CSI-RS configuration 2, respectively. For an initially accessed UE, the input to the beamlet is obtained by measuring the DL measurement and/or UL SRS, demodulation reference signal (DMRS) of the large beam CSI-RS configuration 1, including precoding Information, beam direction, channel quality, location, etc., thereby transmitting data and/or control channels to the UE using the beamlet. The network side can configure one or more CSI-RS configurations for a certain UE to perform CQI measurement. These CSI-RSs The configuration may be performed by one or more small beams, and the network side performs dynamic beam selection on the UE according to the measurement results of multiple CSI-RSs and or UL SRSs and DMRSs.

AAS can also dynamically generate beamwidth and direction. A simplified approach is for AAS to generate a beam with a hook at a certain angle, such as 360 degrees, with each beam having the same lobe width. The network side configures the CSI-RS for the beam or transmits the CSI-RS within the beam. The CSI-RS configuration can be multiplexed after a certain number of beams are separated.

2. Heterogeneous network (heterogeneous network, referred to as HetNet) scenario: In the HetNet scenario, in addition to the macro network, there is a low power node (referred to as: LPN) under the coverage of the macro network. The network side can configure the CSI-RS configuration for the UEs under Macro and LPN. The UE performs CSI-RS measurement and reporting according to the CSI-RS configuration it receives. Therefore, the network side can perform dynamic node selection transmission or coordinated scheduling transmission on the UE.

FIG. 1 is a flowchart of a CQI reporting request method according to Embodiment 1 of the present invention. As shown in FIG. 1, the method includes:

Step 102: The sending end device sends a CQI reporting request message to the receiving end device, where the CQI reporting request message carries M CSI-RS configuration indications, to instruct the receiving end device to perform CQI measurement and reporting according to the M CSI-RS configuration indications. , M is a positive integer greater than or equal to 1.

The present invention uses the sender device as the network side device, and the receiver device as the UE as an example, but is not used to limit the specific execution subject, and the selected scheme is that the sender device and the receiver device are both UEs. Wait.

In the present invention, the CQI report request may also be referred to as a CQI report request, a CQI report configuration, and a CQI measurement configuration, without loss of generality. The following is a CQI report request.

Before describing the above method embodiments, some concepts need to be explained. among them,

The CQI report request message is a summary of the message for a specific purpose, and may be various downlink messages sent by the network side device to the UE, such as physical downlink control channel (Physical downlink Control Channel). Abbreviated as: PDCCH), Media Access Control (MAC) control element (Control Element, referred to as CE) or Radio Resource Control (RRC), or Custom, non-standard messages, not limited here. For the specific use mentioned above, it can be understood that the network side device notifies the UE to perform measurement and uplink of multiple CSI-RS configurations through the message. The CSI-RS configuration indication can be understood as a CSI-RS configuration ID or a CSI-RS configuration index, and of course, other strings and numbers that can uniquely represent a CSI-RS configuration. A combination of words, letters, etc. or used alone. There is a correspondence between the CSI-RS configuration indication and the CSI-RS configuration itself. The correspondence may be pre-stored in the sender device and the receiver device. In this case, the CSI-RS configuration itself may be uniquely determined in the correspondence according to the CSI-RS configuration ID or the CSI-RS configuration index. The CSI-RS configuration indication may also be the CSI-RS configuration itself.

2 is a flowchart of a CQI report request method according to Embodiment 2 of the present invention. As shown in FIG. 2, before the step 102, the method may further include:

Step 101: The sending device configures a CQI report request message.

On the basis of the embodiment shown in FIG. 2, FIG. 3 is a flowchart of a CQI reporting request method according to Embodiment 3 of the present invention. As shown in FIG. 3, before the step 101, the method may further include: Step 100: Sending The end device configures a CSI-RS measurement set of the receiving end device, where the CSI-RS test set includes N CSI-RS configurations for the CQI measurement by the receiving end device, where N is a positive integer greater than or equal to 1.

Correspondingly, step 101 can be changed to:

Step 101: Select a C CSI-RS configuration configuration CQI report request message from the CSI-RS measurement set of the configured receiving end device.

It should be noted that the content provided in the foregoing embodiment is that the sending end device can configure all the configurations in the CSI-RS measurement set of the receiving end device to the CQI reporting request message at a time, or can be configured in different times. There are no restrictions on the case. For each CSI-RS configuration configured in the CQI report request message, the receiving device can perform all measurements or measure some of them.

Hereinafter, some of the contents involved in the above three embodiments will be specifically described.

In the first case, the CQI report request message may be: a PDCCH message or an enhanced PDCCH (ePDCCH) message. For the sake of brevity, the PDCCH message is used to refer to the PDCCH message or the ePDCCH message in the subsequent embodiments of the present invention. A CRC check is added to the payload of the PDCCH message. The bit length of the payload of the PDCCH message is A, and the bit length of the CRC check is L. Then the overall bit length of the PDCCH message including the CRC check is A+L. If the CRC is classified as a Radio Network Temporary Identifier (RNTI), it can be used to identify PDCCH transmissions for various purposes, such as C-RNTI scrambling for dynamic scheduling. SPS-RNTI for semi-persistent scheduling, SI-RNTI for system message broadcasting, and so on. Based on the above description, in the embodiment of the present invention The step 101 provided can be understood as:

Step 101a: Perform further scrambling on the CRC check scrambled by the RNTI using M CSI-RS configuration indications.

For example, the PDCCH payload is « ₂ , « ₃ ,..., ― the bit length is A; the CRC check is _Po , _Pl , p ₂ , p ₃ ,..., p _L , the bit length is L; The checked PDCCH message becomes A'm bit length is A+L. Suppose the RNTI is ^. , x shout,,.,., shout ₁₅ , the bit length is 16, where, ^. Corresponding to the highest position. The PDCCH message after RNTI scrambling on the CRC check becomes _c . , _Cl , , where , and the relationship is:

c _k =b _k , k= 0, 1,2, ..., Al

c _k ={b _k +x _rnti _ _A ) oA2 , k = A,A+\,A+2,...,A+\5

After the C-RS configuration is further scrambled by the CRC check after C is scrambled by the RNTI, the relationship between the and is changed to:

c _k =b _k , k = 0, 1,2, ..., Al

3⁄4=(3⁄4 + -^+ ^mod2 ' k = A, A+\, A+2,...,A+\5

It should be noted here that since the bit length of the CRC check of the PDCCH is 16, and the bit length of the RNTI is also 16, the above formula gives A+15 bits instead of A+L-1. This is for the purpose of clearly describing the specific information and is not intended to limit the scope of the invention. The bit number of the scrambled data composed of the CSI-RS configuration indication is also 16 bits. According to the scrambling method described above, the CRC check can be scrambled together using the RNTI scrambled data and the CSI-RS scrambled data.

The CRC check may be scrambled by means of a CSI-RS configuration indication packet. For example, L bits are allocated for M CSI-RS configuration indications, and each CSI-RS configuration indicates allocation of L/M bits. If the L bits are equal to the number of bits of the CRC check, the L bits are used to scramble the CRC check. If the number of L bits and the number of bits of the CRC check are not equal, then the number of bits of the L bits is complemented by 0, so that the number of bits of the data after the complement is equal to the number of bits of the CRC check, and the data after the complement is used. The CRC check is scrambled. Specifically, if the number of elements in the CSI-RS measurement set is N, then when M is 1, the allocation of the CSI-RS configuration indication needs to be performed! ^^ bits, when M is 2, the CSI-RS configuration allocation corresponding to the two CSI-RS configuration indications needs to be 2! ^(^ bits, and so on. The MxLog bits are grouped and discharged in order. The order here may be the configuration indication order when the CQI report request message is sent, such as CSI-RS configuration X corresponding index 0, CSI-RS Configure y for index 1, then The result of the CSI-RS configuration x is reported earlier, and the result of the CSI-RS configuration y is later or vice versa. Each group is a Log bit for one CSI-RS configuration indication. If the length of M x Log ₂ ^N bits is less than the length of the CRC check, the length can be complemented by adding 0 to the MX Log ₂ ^N bits. For example, if N is 8 and M is 2, that is, there are 8 CSI-RS configuration indications in the CSI-RS measurement set. Each time a CQI report request message is configured, two CSI-RS configuration indications need to be configured to the receiving device to indicate measuring. Then, it is necessary to have 2 groups of 6 bits for the CSI-RS configuration indication, and one CSI-RS configuration indication every 3 bits. However, since the bit of the CRC check is 16 bits, the CSI-RS scrambled data can be configured as: 0000000000

In the second case, the CQI report request message may be: a PDCCH message or an ePDCCH message. For the sake of brevity, the PDCCH message is used to refer to the PDCCH message or the ePDCCH message in the subsequent embodiments of the present invention. A CRC check is added to the payload of the PDCCH message. The bit length of the payload of the PDCCH message is A, and the bit length of the CRC check is L. Then, the overall bit length of the PDCCH message including the CRC check is A+L. If the CRC check is RNTI scrambled, it can be used to identify PDCCH transmissions for various purposes, such as C-RNTI scrambling for dynamic scheduling, SPS-RNTI for semi-persistent scheduling, and system message broadcast. SI-RNTI and so on. Based on the above description, the step 101 provided in the embodiment of the present invention can be understood as:

Step 101b: scrambling the CRC check by using N CSI-RS configuration indication bit bitmaps in the CSI-RS measurement set, where the bitmap is used to indicate M CSI-RS configurations that the receiving end device needs to perform measurement.

Different from the description in step 101a, step 101b defines a bit length indicating a CSI-RS configuration indication according to the number of elements N of the receiving device CSI-RS measurement set, and reserves a bit that is less than the CRC check length (for example, 0) , so that the CSI-RS configuration indication can be obtained. The CRC check is scrambled using the CSI-RS configuration indication bit bitmap. This bitmap is used to indicate which are the C CSI-RS configurations that need to be measured by the receiving device. As shown in FIG. 4, assuming that the CSI-RS measurement set size is 16, and there are 16 CSI-RS indications, the length of the CSI-RS configuration indication is 16, which is equal to the length of the CRC check. When the CSI-RS configuration indications are arranged in order from low to high and the CRC check is sequentially scrambled, the CSI-RS configuration indications 11 and 15 can be obtained according to the description in the bitmap, and the receiving device needs to be measured. 2 CSI-RS configurations. In the third case, the CQI report request message may be: a PDCCH message or an ePDCCH message. For the sake of brevity, the PDCCH message is used to refer to the PDCCH message or the ePDCCH message in the subsequent embodiments of the present invention. Based on the above description, the step 101 provided in the embodiment of the present invention can be understood as:

Step 101 c: Add M CSI-RS configuration indications to the payload of the PDCCH message. Specifically, the PDCCH message may be uplink scheduling signaling, or may be downlink scheduling signaling. It should be further noted that the downlink control information (Downlink Control Information, DCI) may be carried in the payload of the PDCCH message, and the DCI in a fixed format is referred to as the DCI format. The embodiment of the present invention may also add M CSI-RS configuration indications to the DCI format.

The payload size of the PDCCH message and the meaning of each bit in the payload are defined in DCI format 0/4. Then, M CSI-RS configuration indications can also be added to DCI format 0/4. Take DCI format 0 as an example for illustration. The format of the DCI format 0 may be set to: the carrier indication bit is 0 or 3 bits, the formatO/formatlA distinguishes the flag 1 bit, the centralized/distributed VRB configuration flag 1 bit, the RB allocation bit, and the CSI-RS configuration index 10 bits. For the 10-bit CSI-RS configuration index, the reserved bits and/or the packet indication bits may be set according to the configured number of CSI-RS IDs. It can be grouped according to the number of CSI-RS configuration IDs. It is assumed that the number of CSI-RS configuration IDs is 32, and the CSI-RS configuration index is divided into two groups, each group log ₂ ^N = log ₂ ³² = 5 bits, also That is, the CSI-RS configuration index 1 is 5 bits, and the CSI-RS configuration index 2 is 5 bits. Assuming that the number of CSI-RS configuration IDs is 8, the CSI-RS configuration index can be divided into three groups of three bits each. At this time, the CSI-RS configuration index may also have a 1-bit reserved bit. Each of the remaining 9 bits corresponds to one CSI-RS configuration index.

Optionally, you can also use the reserved bits of the DCI format for CSI-RS configuration indication. For example, the reserved bits of the MCS. In the prior art, the MCS is 5 bits, and the corresponding one can be used to indicate 32 indexes 0 to 31, wherein the indexes 29, 30, and 31 are reserved bits. A CSI-RS configuration can be indicated from the configuration IDs of less than or equal to 8 CSI-RSs using indices 29, 30, and 31.

It should be noted that, based on the foregoing embodiment, as shown in FIG. 5, in the first case, the second case, or the third case, the following steps may be added after step 101: Step 102a: The receiving end device sends a notification message for indicating that the CQI report request message carries the M CSI-RS configuration indications.

The main purpose of the step 102a is to notify the receiving device CQI to report the request message. In the CSI-RS configuration instructions. The notification message may be some high layer signaling, such as an RRC message. The CSI-RS configuration indication may be directly notified by the RRC message to the CQI reporting request message of the receiving device, or may be notified by the domain in the RRC message to the CSI-RS configuration request message in the CQI reporting request message. For example, a CSI-Presence field, the field may be used to indicate whether a CSI-RS indication field exists in a DCI format of a PDCCH message, if the domain name is true, if not, the domain value is false. .

In the fourth case, the request message on 〇01 can be: MAC message. The step 101 provided in the embodiment of the present invention can be understood as:

Step 101d: Assign a MAC logical channel identifier (Logid Channel ID, LCID) to the M CSI-RS configuration indications in the sub-header of the Protocol Data Unit (PDU) of the MAC message. Identifies the CSI-RS configuration indication.

Wherein, one MAC PDU is composed of a MAC header, zero or more MAC Service Data Units (MAC SDUs), and one or more MAC Control Elements (referred to as: CE). Also selected is the padding. A MAC header consists of one or more MAC subheaders. Each subheader corresponds to a MAC SDU or a MAC CE or padding. In addition to the last subheader in the MAC PDU and the fixed size MAC CE and padding, one MAC PDU subheader includes six header fields R/R/E/LCID/F/L. The last subheader and fixed-size MAC CE and padding consist of only four header fields R/R/E/LCID.

The allocated MAC LCID may be selected from the MAC LCID reserved by the MAC message, and the reserved MAC LCID range is 01011-11010. The PDU sub-header format of the MAC may include: R is a reserved bit, which can be set to 0, and E is an extended field, which is used to identify whether there is a new domain in the MAC CE subheader. For example, when E is set to 1, it can indicate that there is a new field. When E is set to 0, it can indicate that the next byte is a padding bit. The length of the MAC CE can be defined in advance, for example, a fixed length can be used, such as the number of elements in the CSI-RS measurement set. Assuming that the number of elements in the CSI-RS measurement set is N, and N is a multiple of 8, the MAC CE can use a bitmap, and the configuration indication of the CSI-RS can be divided into N/8 bytes, each One bit in the byte corresponds to one CSI-RS configuration indication, and setting or setting this bit to 0 can be used to indicate whether its corresponding CSI-RS configuration indication is valid.

In the fifth case, the CQI report request message may be: an RRC message.

It should be noted that multiple CSI-RS configurations may be directly configured through an RRC message. One CSI-RS configuration corresponding to one of the M CSI-RS configurations in one RRC message, corresponding to one The CQI report configuration includes the periodic report and/or the aperiodic report information. The measurement configuration of multiple CSI-RSs may be independent RRC messages. For example, one RRC message is defined for each CSI-RS measurement configuration, and at least one of the number of antenna ports, resource configuration, and subframe configuration in the RRC message may be, but is not limited to, the following:

CSI-RS-setx:: = SEQUENCE {

CSI-RS CHOICE {

Release NULL,

Setup SEQUENCE {

antennaPortsCount-r 10 EMNUMERATED {anl, an2, an4,an8},

resourceCongif-rlO INTEGER(0...31),

Optionally, the configuration of multiple CSI-RSs may also be configured by one RRC message. For example, each CSI-RS configuration corresponds to one CSI-RS ID _{0. The} RRC message may only carry the CSI-RS ID, or only the CSI-RS configuration or both the CSI-RS configuration and its corresponding id. When the network side and the user equipment pre-store the correspondence between the CSI-RS configuration and its ID, the RRC message may indicate the CSI-RS configuration that needs to perform CQI measurement and reporting by directly indicating the CSI-RS ID, and the following example gives Each indicated CSI-RS configuration or CSI-RS configuration ID has a corresponding CQI reporting configuration. The CQI reporting configuration may include a non-periodic CQI reporting and/or periodic CQI reporting. Where maxCSI-RS indicates the number of CSI-RS configurations in the CQI measurement set.

CSIRSCQIList-ReportConfig-rl 1:: SEQUENCE (SIZE (L.maxCSIRS) OF CSIRSCQI-ReportConfig-rl 1

CSIRSCQI-ReportConfig-rl 1:: = SEQUENCE {

Csi-rsld INTEGER(1..maxCSI-RS)

cqi-ReportAperiodic-rl 1 CQI-ReportAperiodic-rl 1

OPTIONAL, -- Need ON

Etc ...

The last thing to be explained in the embodiment of the method is that when the receiving end device is not pre-stored When the CSI-RS configuration is related to the CSI-RS configuration ID, the network side needs to configure the CSI-RS with its

The corresponding relationship of the ID is sent to the terminal, or only the configuration of the CSI-RS is sent to the terminal, and then the terminal performs corresponding CQI measurement and uploading. Than the user equipment CSI-RS configuration through the RRCConnectionReconfiguration message

Among them, the newly defined RRCConnectionReconfiguration-vl lxO-IEs mainly contains

The configuration information of the CSI-RS is defined as follows:

RRCConnectionReconfiguration-vl 1 xO-IEs:: = SEQUENCE {

csi-rsConfigList SEQUENCE(SIZE(1..maxCSI-RS)) OF

CSI-RSConfig OPTIONAL,

nonCriticalExtension SEQUENCE {} OPTIONAL -Need

OP

The configuration of the CSI-RS is as follows (here, the CSI-RS configuration includes the number of antenna ports AntenaPortsCount, the resource, the West set resourceConfig, and the sub-set Westset subframeConfig as an example)

CSI-RSConfig:: = SEQUENCE {

Csi-rsld INTEGER(1..maxCSI-RS),

csi-rsAntennaPortsCount ENUMERATED {anl, an2, an4, an8}, resourceConfig INTEGER (0..31),

subframeConfig INTEGER (0..154),

}

The method for reporting a CQI request in the foregoing embodiment of the present invention, by configuring M CSI-RS configuration indications in the CQI report request message, and sending the configured CQI request message to the receiving device to indicate the user The device performs CQI measurement reporting according to the M CSI-RS configuration indications, and implements CQI measurement and reporting of multiple CSI-RS configurations supported by the receiving device.

FIG. 6 is a flowchart of a CQI reporting method according to Embodiment 6 of the present invention. As shown in FIG. 6, the method includes:

Step 601: The receiving end device receives the CQI reporting request message sent by the sending end device, where the CQI reporting request message carries M CSI-RS configuration indications, where M is a positive integer greater than or equal to 1;

Step 602: The user equipment performs measurement on at least one of the M CSI-RS configurations indicated by the M CSI-RS configuration indications, and reports the measurement result to the sending end device. Before the method shown in FIG. 6 is introduced, it is required that the UE can perform periodic CQI reporting or aperiodic CQI reporting. For periodic CQI reporting, the bandwidth portion reported by the CQI is defined in the existing system. The selection of subbands is selected in the defined bandwidth section. For example, the bandwidth part j reported by the CQI may be: a frequency continuous Ν" subband. The number of bandwidth parts j can be as shown in Table 1. Table 1 is a comparison table of subband size (k) and bandwidth part (j) and downlink system bandwidth.

Table 1

When periodically reporting, the CQI and its subband position of a subband selected by a bandwidth part are sequentially reported. For aperiodic reporting, the existing system reports the CQI and its subband positions of R subbands in the entire bandwidth. The embodiment of the present invention defines a correspondence between a CQI report and a CSI-RS configuration indication when a UE needs to measure multiple CSI-RS configurations to report one or more CSI-RS measurement results.

In the first case, step 602 can be understood as:

Step 602: The UE may perform CQI measurement according to the order of the M CSI-RS configurations indicated by the M CSI-RS configuration indications in the received CQI report request message, and report the measurement result in the sequence.

The way to report the measurement results is as follows:

(1), according to the sequence in step 602a, reporting by a system bandwidth corresponding to a CQI measurement result. As shown in table 2:

Table 2

The wideband CQI measurement result x corresponds to the CSI-RS configuration x, the wideband CQI measurement result y corresponds to the CSI-RS configuration y, and the wideband CQI measurement result z corresponds to the CSI-RS configuration z.

(2), according to the order in step 602a, through the p sub-populations selected in the entire system bandwidth Reported in a manner corresponding to a CQI measurement result. The subband may be a subband selected in the entire system bandwidth, or a subband selected by a different bandwidth portion. As shown in Table 3: Table 3

The sub-band 1 and the sub-band j that are selected in the system bandwidth corresponding to the CSI-RS configuration report the CQI; the sub-band j and the sub-band k selected in the system bandwidth corresponding to the CSI-RS configuration y report the CQI; corresponding CSI-RS configuration z Subband 1 and subband z selected within the system bandwidth report CQI; P subband reporting CQI is selected within the system bandwidth independently of each CSI-RS configuration. The CQI of the selected P subbands may be the CQI corresponding to the SINR maximum in the system bandwidth relative to the other subbands, or the CQL with the highest spectral efficiency, the measurement result of each CSI-RS configuration indication corresponding to a selected group of P subbands CQI.

(3) According to the sequence in step 602a, a sub-band is reported corresponding to a CQI measurement result. The sub-band may be a sub-band selected by a certain bandwidth portion. As shown in Table 4: Table 4

Each time the CQI is reported, the sub-band of each bandwidth part carries a CQI report with a sub-band, and the CQI of each sub-band corresponds to a CSI-RS configuration indication.

In the second case, step 602 can be understood as:

Step 602b: The receiving end device may select one or more of the M CSI-RS configurations indicated by the M CSI-RS configuration indications in the received CQI report request message to perform measurement. The measurement result is reported, and in the process of reporting, the CSI-RS configuration indication corresponding to the measurement result is carried. For example, the sending end device sends three CSI-RS configuration indications to the receiving end device, and the receiving end device performs CQI measurement on the three CSI-RS configurations corresponding to the three CSI-RS configuration indications, and compares the measurement results, and the measurement result is obtained. Select 2 measurement results, corresponding to the measurement results

The CSI-RS configuration indication is reported to the sending device together.

The way to report the measurement results is as follows:

(1) Reporting through a system broadband corresponding to a CQI measurement result. As shown in Table 5:

Each CQI report selects M CQIs from N CQIs for reporting. N CQIs can correspond to the configured N CSI-RS configurations. 1<=M<=N, M is the M CQIs selected among N CQIs. The M CQIs may be the CQI corresponding to the largest SINR among the N CQIs, or the CQI with the highest spectral efficiency. The CQI for each selection corresponds to the identity of a CSI-RS configuration or CSI-RS configuration.

(2) Reporting by means of the p sub-bands selected in the entire system bandwidth corresponding to one CQI measurement result. The subband may be a subband selected from the entire system bandwidth, or a subband selected by a different bandwidth portion. As shown in Table 6:

Table 6

Each subband selects M CQIs among N CQIs. The N CQIs may correspond to the configured N CSI-RS configurations. 1 <= M <= N, M is the M CQIs selected among the N CQIs. The M CQIs may be CQIs corresponding to the largest SINR, or CQIs with the highest spectral efficiency. The CQIs of the P subbands are selected for reporting in the system bandwidth. The CQI of each subband of the P subbands is one of M CQIs. For each CQI of the selected subband, there may be a subband label identifying the location of the subband. And or each sub-band corresponds to a CSI-RS configuration indication. (3) Reporting by means of a sub-band corresponding to a CQI measurement result. The subband may be a subband selected by any bandwidth portion. As shown in Table 7:

Table 7

Each time a subband of each bandwidth portion is selected to measure N CQIs corresponding to N CSI-RS configurations, and M CQIs are selected for reporting in N CQIs.

The method for reporting CQI provided by the embodiment of the present invention effectively solves the effective correspondence between the CSI-RS based measurement and the reported CQI.

FIG. 7 is a flowchart of a method for indicating a CRS resource according to Embodiment 7 of the present invention. As shown in FIG. 11, the method includes:

Step 701: The CRS resource is carried in the notification message and sent to the receiving device, where the notification message is used to notify the receiving device to exclude the CRS resource from the PDSCH resource.

Specifically, when selecting at least one transit node for the receiving device in the node candidate set according to the CQI report, the two can be distinguished into two cases: one is a transparent node selection for the receiving device, and the other is The receiving device is not transparent to the transmission node selection. The transparency or non-transparency mentioned here is mainly for the receiving device. That is, whether the receiving end device needs to obtain the CRS of the neighboring cell that sends the PDSCH notification, if necessary, the CRS of the neighboring cell is opaque to the receiving end device, and if not required, the CRS of the neighboring cell is received by the receiving end. The device is transparent.

The difference between the transparent or opaque of the receiving device is as follows: If the CRS of the neighboring cell is opaque to the receiving device, the CRS resource exclusion message needs to carry the CRS of the neighboring cell. If the CRS of the neighboring cell is transparent to the receiving device, set the CRS of the neighboring cell and the serving cell to the same port number, or configure data transmission between the neighboring cell and the serving cell in the Multicast Broadcast Single Frequency Network. Referred to as: MBSFN) on the sub-frame, The CRS resource exclusion message may not carry the CRS of the neighboring cell, and the CRS of the default neighboring cell is the same as the CRS of the serving cell, so that the neighboring cell and the serving cell have some or all of the same MBSFN subframes.

The CRS of the serving cell can be obtained in multiple ways. One is that the sender device directly notifies, for example, the CRS resource exclusion message notification, or other known message notification, and the other is that the receiving device performs the adaptive CRS resource. Location recognition is obtained.

The primary purpose of the CRS resource exclusion message is to have nodes that may affect the location of the CRS resource of the transmitting node.

Step 701 can be, but is not limited to, performed as follows:

A CRS indicator (CRS Indicator, referred to as CRSI) may be added to the PDCCH message, where the CRSI is used to indicate a frequency domain offset of a CRS resource of a transit node or a current subframe relative to a CRS resource of a serving cell. The notification can be made by, for example, 2 bits of information, wherein the corresponding code can be, but is not limited to, the following table:

Table 8

Alternatively, CRSI is added to the reserved bits of the PDCCH message to indicate different CRS frequency domain locations. For example, in the reserved bits of the MCS of the PDCCH message. In the prior art, the MCS is configured with 5 bits of reserved bits. Can indicate 32 indexes, 0~31. Where indexes 29, 30, and 31 are reserved. The index 29, 30, 31 may be used to indicate the frequency domain offset of the CRS of the current TTI relative to the CRS resource of the serving cell, wherein the corresponding reserved bits may be, but are not limited to, the following table:

Based on the foregoing embodiments, the RRC message is simultaneously used to notify the receiving end device of the frequency domain location of different CRS resources. The RRC message is responsible for notifying whether there is a CRS indicator bit. The RRC message may use a specific domain, such as a crs-Presence field, to indicate whether the CRS indicator field exists in the DCI format of the PDCCH. If yes, the value is true, if not Exist, the value is false.

FIG. 8 is a flowchart of a method for obtaining a CRS resource according to Embodiment 8 of the present invention. As shown in FIG. 8, the method includes: Step 801: The receiving end device receives a CRS resource message sent by the sending end device, where the CRS resource message carries at least one transmission selected by the sending end device in the node candidate set according to the received CQI measurement report of the receiving end device. a resource corresponding to the CRS when the node or the transmitting device transmits the PDSCH in the current subframe;

Step 802: Obtain a resource for transmitting a PDSCH message, and obtain a resource set of the PDSCH, and use the resource obtained by excluding the CRS resource carried in the CRS resource message from the resource set of the PDSCH as a resource of the PDSCH message.

It should be noted that the step 802 can be understood as a process of de-mapping a PDSCH resource. In addition to the CRS resource carried in the CRS resource message, the other RS resources need to be excluded. , such as CSI-RS resources, DMRS resources, etc., do not make a comment here.

The method provided by the embodiment of the present invention effectively implements the problem that when the node selection transmission is performed between different nodes, the notification message transmission cannot be normally demodulated due to the CRS resource.

One of ordinary skill in the art will appreciate that all or part of the steps to implement the various method embodiments described above can be accomplished by hardware associated with the program instructions. The aforementioned program can be stored in a computer readable storage medium. The program, when executed, performs the steps including the above-described method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

FIG. 9 is a schematic structural diagram of a device at a sending end according to Embodiment 9 of the present invention. As shown in FIG. 9, the device at the sending end may include:

The sending module 901 is configured to send a CQI report request message to the receiving end device, where the CQI report request message carries M channel state information reference signal CSI-RS configuration indications, to instruct the receiving end device to perform according to the M CRI-RS configuration indications. CQI measurement and reporting, M is a positive integer greater than or equal to 1.

Further, on the basis of the transmitting end device shown in FIG. 9, FIG. 10 is a schematic structural diagram of a transmitting end device according to Embodiment 10 of the present invention. As shown in FIG. 10, the transmitting end device may further include:

The message configuration module 902 is configured to configure a CQI report request message.

Further, on the basis of the transmitting end device shown in FIG. 10, FIG. 11 is a schematic structural diagram of a transmitting end device according to Embodiment 11 of the present invention. As shown in FIG. 11, the transmitting end device may further include: The set configuration module 903 is configured to configure a CSI-RS measurement set of the receiving end device, where the CSI-RS measurement set includes N CSI-RS configurations for the CQI measurement by the receiving end device, where N is a positive integer greater than or equal to 1;

Correspondingly, the message configuration module 902 is configured to: select, from the CSI-RS measurement set of the receiving device, the M CSI-RS configuration configuration CQI report request message.

In an embodiment, the CQI reporting request message is: a physical downlink control channel PDCCH message including a CRC check or an enhanced physical downlink control channel ePDCCH message, where the message configuration module 902 includes: a first scrambling unit, configured to use M The CSI-RS configuration indication scrambles the CRC check.

The first scrambling unit is specifically configured to: allocate L bits for the M CSI-RS configuration indications; if the L bits are equal to the number of bits of the CRC check, use the L bits to scramble the CRC check If the number of L bits is not equal to the number of bits of the CRC check, the 0 bits are padded in front of the L bits, so that the number of bits of the data after the complement is equal to the number of bits of the CRC check, and The data scrambles the CRC check.

In the second implementation manner, the CQI report request message is: a physical downlink control channel PDCCH message including a CRC check or an enhanced physical downlink control channel ePDCCH message, and the message configuration module 902 includes: a second scrambling unit, configured to use CSI The N CSI-RS configuration indication bit bitmaps in the RS measurement set scramble the CRC check, and the bitmap is used to indicate the M CSI-RS configurations that the receiving end device needs to perform measurement.

In the third implementation manner, the CQI request message is a physical downlink control channel PDCCH message or an enhanced physical downlink control channel ePDCCH message, and the message configuration module 902 includes: an adding unit, configured to be in a payload of the PDCCH message or the ePDCCH message. Added M CSI-RS configuration instructions.

In one case, the adding unit is specifically configured to: add M CSI-RS configuration indications in the DCI format O or 4 of the PDCCH message or the ePDCCH message.

In another case, the adding unit is specifically configured to: add M CSI-RS configuration indications in a DCI format reserved bit of the PDCCH message or the ePDCCH message.

In the third implementation manner, the message requesting module 142 includes: an allocating unit, configured to allocate a MAC LCID for the M CSI-RS configuration indications in the PDU subheader of the MAC message, Used to identify the CSI-RS configuration indication.

Further, based on the transmitting device shown in any of FIG. 9 to FIG. 11, FIG. 12 is the present disclosure. A schematic diagram of a structure of a transmitting device provided in Embodiment 12, as shown in FIG. 12, the transmitting device may further include: a notification module 904, configured to send, to the receiving device, the M message carrying the CQI report request message A notification message indicating the CSI-RS configuration.

In the foregoing implementation manner, the CSI-RS configuration indication is a CSI-RS configuration ID or a CSI-RS configuration index or a CSI-RS configuration.

It should be noted that the sender device is a network side device or a user equipment.

FIG. 13 is a schematic structural diagram of a receiving end device according to Embodiment 13 of the present invention. As shown in FIG. 13, the receiving end device includes:

The receiving module 131 is configured to receive a CQI report request message sent by the sending end device, where the CQI report request message carries M CSI-RS configuration indications, where M is a positive integer greater than or equal to 1; and the measuring module 132 is configured to Performing CQI measurement by at least one of the CSI-RS configurations indicated by the CSI-RS configuration indications;

The reporting module 133 is configured to report the measurement result to the sending device.

In an implementation manner, the measurement module 132 is specifically configured to: perform CQI measurement according to an order of CSI-RS configurations indicated by M CSI-RS indications in the received CQI report request message.

In the second implementation, the measurement module 132 is specifically configured to: select one or more of the M CSI-RS configurations indicated by the M CSI-RS configuration indications in the received CQI report request message to perform CQI measurement; The reporting module 133 is specifically configured to: report the measurement result, and the CSI-RS configuration indication corresponding to the measurement result.

In the third embodiment, the upper module 133 is configured to: report by a system bandwidth corresponding to a CQI measurement result.

In the fourth embodiment, the reporting module 133 is configured to: report, by using, the selected sub-bands in the system bandwidth, the sub-bands are sub-bands selected in the system bandwidth, or different bandwidth parts. Select the sub-bands.

In the fifth embodiment, the upper module 133 is configured to: report a sub-band corresponding to a CQI measurement result, and the sub-band is a sub-band selected by any bandwidth portion.

It should be noted that the receiving end device is a user equipment.

FIG. 14 is a schematic structural diagram of a device at a transmitting end according to Embodiment 14 of the present invention. As shown in FIG. 14, the device at the transmitting end includes:

The notification module 141 is configured to send the resource of the CRS to the receiving device, where the notification message is used to notify the receiving device to use the CRS resource from the PDSCH. Excluded from resources.

The notification module is a PDCCH message, and the notification module 141 specifically includes: a first unit, configured to add a CRS indication to the PDCCH message, where the CRS indicates a CRS for indicating a CRS resource of the transit node or the current subframe relative to the serving cell The frequency domain offset of the resource, and the PDCCH message with the CRS indication added is sent to the receiving end device;

Specifically, the first unit is specifically configured to: add a CRS indication to the reserved bit of the PDCCH message, and send the PDCCH message with the CRS indication to the receiving end device.

Specifically, the notification module 141 is further configured to: send an indication message to the receiving end device to indicate that the CRS indication exists in the receiving end device notification message.

FIG. 15 is a schematic structural diagram of a receiving end device according to Embodiment 15 of the present invention. As shown in FIG. 15, the receiving end device may include:

The receiving module 151 is configured to receive a CRS resource message sent by the sending end device, where the CRS resource message carries at least the CQI measurement report reported by the sending end device in the node candidate set as the receiving end device according to the received CQI measurement report. a resource of a corresponding CRS when a transmitting node or a transmitting device transmits a PDSCH in a current subframe;

The determining module 152 is configured to obtain the resource of the PDSCH message, obtain the resource set of the PDSCH, and use the resource obtained by excluding the CRS resource carried in the CRS resource message from the resource set of the PDSCH as the resource of the PDSCH message. .

FIG. 16 is a schematic structural diagram of a communication system according to Embodiment 16 of the present invention. As shown in FIG. 16, the communication system includes: a transmitting end device 161 and a receiving end device 162 provided in the foregoing embodiment.

It should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.

Claims

Rights request

A channel quality indication CQI request method, comprising: a sending end device sending a CQI report request message to a receiving end device, where the CQI reporting request message carries M channel state information reference signals CSI And an RS configuration indication, to indicate that the receiving end device performs CQI measurement and reporting according to the M CRI-RS configuration indications, where the M is a positive integer greater than or equal to 1.

The method according to claim 1, wherein the method further comprises: configuring, by the sending end, the CQI report request message.

The method according to claim 2, wherein the method further comprises: the sending end device configuring a CSI-RS measurement set of the receiving end device, where the CSI-RS measurement set includes the N CSI-RS configurations in which the receiving end device performs CQI measurement, where N is a positive integer greater than or equal to 1;

The sending end device configured to send a CQI request message includes:

The transmitting device selects M CSI-RS configuration CQI report request messages from the CSI-RS measurement set of the receiving device.

The method according to claim 2 or 3, wherein the CQI report request message is: a physical downlink control channel PDCCH message including a CRC check or an enhanced physical downlink control channel ePDCCH message, and the transmitting end The device configuration CQI report request message includes: the sending end device uses the M CSI-RS configuration indications to perform power interference on the CRC check.

The method according to claim 4, wherein the using, by the sending end device, the scrambling of the CRC check by using the M CSI-RS configuration indications includes:

The transmitting device allocates L bits for the M CSI-RS configuration indications; if the L bits are equal to the number of bits of the CRC check, the sending device uses the

L bits scramble the CRC check;

If the L bits are not equal to the number of bits of the CRC check, then the L bits are added in front of the L bits.

0, such that the number of bits of data after padding is equal to the number of bits of the CRC check, and the CRC check is scrambled using the data after padding.

The method according to claim 3, wherein the CQI report request message is: a physical downlink control channel PDCCH message including a CRC check or an enhanced physical downlink control And the transmitting end device configuring the CQI report request message includes: the sending end device scrambling the CRC check by using the N CSI-RS configuration indication bit bitmaps in the CSI-RS measurement set The bitmap is used to indicate M CSI-RS configurations that the receiving end device needs to perform measurement.

The method according to claim 2 or 3, wherein the CQI report request message is a physical downlink control channel PDCCH message or an enhanced physical downlink control channel ePDCCH message, and the sender device configures a CQI report request message. Includes:

The transmitting device adds M CSI-RS configuration indications to the payload of the PDCCH message or the ePDCCH message.

The method according to claim 7, wherein the adding, by the sending end device, the M CSI-RS configuration indications in the payload of the PDCCH message or the ePDCCH message includes: the sending end device is in the MCI CSI-RS configuration indications are added to the DCI formatO or 4 of the PDCCH message or the ePDCCH message.

The method according to claim 7, wherein the adding, by the sending end device, the M CSI-RS configuration indications in the payload of the PDCCH message or the ePDCCH message includes: the sending end device is in the M CSI-RS configuration indications are added to the DCI format reserved bits of the PDCCH message or the ePDCCH message.

10. The method according to claim 9, wherein the DCI format reserved bit is an MCS reserved bit.

The method according to any one of claims 4 to 10, wherein the method further comprises:

And the sending end device sends, to the receiving end device, a notification message for indicating that the C CSI-RS configuration indication is carried in the CQI reporting request message.

12. The method according to claim 11, wherein the notification message is an RRC message.

The method according to claim 2 or 3, wherein the CQI reporting request message is a MAC message, and the sending end device configuring the CQI reporting request message includes: the PDU of the sending end device in the MAC message The sub-header allocates a MAC LCID for the M CSI-RS configuration indications to identify the CSI-RS configuration indication.

14. The method according to claim 13, wherein the MAC control element CE has a length of N.

The method according to claim 2 or 3, wherein the CQI report request message is an RRC message, and each RRC message carries one or more CSI-RSs in the M CSI-RS configuration indications. Configuration.

The method according to any one of claims 1 to 15, wherein the CSI-RS configuration indication is a CSI-RS configuration ID or a CSI-RS configuration index or a CSI-RS configuration.

The method according to any one of claims 1 to 16, wherein the receiving end device is a user equipment, the transmitting end device is a network side device; or the receiving end device is a user equipment The sending end device is a user equipment.

18. A method of "3⁄4" on 〇01, characterized in that it comprises:

And the receiving end device performs CQI measurement on at least one of the CSI-RS configurations indicated by the M CSI-RS configuration indications, and compares the measurement result to the sending end device.

The method according to claim 18, wherein the receiving end device measures at least one of the CSI-RS configurations indicated by the M CSI-RS configuration indications, and reports the measurement result to the transmitting end. Equipment includes:

The receiving end device performs CQI measurement according to the sequence of CSI-RS configurations indicated by the M CSI-RS indications in the received CQI report request message, and reports the measurement result in the stated order.

The receiving end device selects one or more of the M CSI-RS configurations indicated by the M CSI-RS configuration indications in the received CQI report request message to perform CQI measurement and report the measurement result, and the measurement The result corresponds to the CSI-RS configuration indication.

The method according to claim 19 or 20, wherein the reported measurement result comprises:

Reported by a system bandwidth corresponding to a CQI measurement result.

Performing on the way that the p subbands selected in the system bandwidth correspond to one CQI measurement result The subband is a subband selected within the system bandwidth, or a subband selected by a different bandwidth portion.

The sub-band is reported by a sub-band corresponding to a CQI measurement result, and the sub-band is a sub-band selected for any bandwidth portion.

24. A method for indicating a CRS resource, comprising:

The sending device sends the CRS resource to the receiving device in the notification message, where the notification message is used to notify the receiving device to remove the CRS resource from the PDSCH resource.

The method according to claim 24, wherein the notification message is a PDCCH message, and the sending end device carries the resource of the CRS in the notification message and sends the message to the receiving end device, including:

Adding a CRS indication to the PDCCH message, where the CRS indication is used to indicate a frequency domain offset of a CRS resource in a transmission node or a current subframe relative to a CRS resource of a serving cell.

The method according to claim 25, wherein adding a CRS indication to the PDCCH message comprises:

A CRS indication is added to the reserved bits of the PDCCH message.

The method according to claim 25 or 26, further comprising: the sending end device sending an indication message to the receiving end device to indicate that the receiving end device has a CRS indication in the notification message.

28. A method for obtaining a CRS resource, comprising:

The receiving device obtains the resource of the PDSCH message, and obtains a resource set of the PDSCH, and the resource obtained by excluding the CRS resource carried in the CRS resource message from the resource set of the PDSCH is used as a resource of the PDSCH message.

29. A transmitting device, comprising:

a sending module, configured to send a CQI report request message to the receiving device, where the CQI is The M request message carries the M channel state information reference signal CSI-RS configuration indication, to indicate that the receiving end device performs CQI measurement and reporting according to the M CRI-RS configuration indications, where the M is greater than or equal to 1. A positive integer.

The sender device according to claim 29, further comprising: a message configuration module, configured to configure the CQI request message.

The device according to claim 30, further comprising: a set configuration module, configured to configure a CSI-RS measurement set of the receiving end device, where the CSI-RS measurement set includes the N CSI-RS configurations in which the receiving end device performs CQI measurement, where N is a positive integer greater than or equal to 1;

Correspondingly, the message configuration module is configured to: select, from the CSI-RS measurement set of the receiving end device, M CSI-RS configuration configuration CQI report request message.

The device according to claim 30 or 31, wherein the CQI report request message is: a physical downlink control channel PDCCH message including a CRC check or an enhanced physical downlink control channel ePDCCH message, The message configuration module includes:

And a first scrambling unit, configured to perform power interference on the CRC check by using the M CSI-RS configuration indications.

The transmitting device according to claim 32, wherein the first scrambling unit is specifically configured to: allocate L bits for the M CSI-RS configuration indications;

If the L bits are equal to the number of bits of the CRC check, the L bits are used to scramble the CRC check;

If the number of L bits is not equal to the number of bits of the CRC check, then the L bits are preceded by 0, so that the number of bits of the data after the complement is equal to the number of bits of the CRC check, and after using 0. The data is scrambled for the CRC check.

The device according to claim 31, wherein the CQI report request message is: a physical downlink control channel PDCCH message including a CRC check or an enhanced physical downlink control channel ePDCCH message, where the message is configured. Modules include:

a second scrambling unit, configured to scramble the CRC check by using the N CSI-RS configuration indication bit bitmaps in the CSI-RS measurement set, where the bitmap is used to indicate that the receiving end device needs to perform M CSI-RS configurations measured.

The device according to claim 30 or 31, wherein the CQI report request message is a physical downlink control channel PDCCH message or an enhanced physical downlink control message. The ePDCCH message, the message configuration module includes:

And an adding unit, configured to add M CSI-RS configuration indications to the payload of the PDCCH message or the ePDCCH message.

The transmitting device according to claim 35, wherein the adding unit is specifically configured to: add M CSI-RS configuration indications in the DCI format O or 4 of the PDCCH message or the ePDCCH message.

The transmitting device according to claim 35, wherein the adding unit is specifically configured to: add M CSI-RS configuration indications in a DCI format reserved bit of the PDCCH message or the ePDCCH message.

The device according to any one of claims 32 to 37, further comprising:

The notification module is configured to send, to the receiving end device, a notification message for indicating that the C CSI-RS configuration indication is carried in the CQI reporting request message.

The sender device according to claim 30 or 31, wherein the CQI report request message is a MAC message, and the message configuration module includes:

And an allocating unit, configured to allocate, in the PDU subheader of the MAC message, a MAC LCID for identifying the CSI-RS configuration indication for the M CSI-RS configuration indications.

The transmitting device according to any one of claims 29 to 39, wherein the CSI-RS configuration indication is a CSI-RS configuration ID or a CSI-RS configuration index or a CSI-RS configuration.

The transmitting device according to any one of claims 29 to 40, wherein the transmitting device is a network device or a user device.

42. A receiving end device, comprising:

a measuring module, configured to perform CQI measurement on at least one of the CSI-RS configurations indicated by the M CSI-RS configuration indications;

The receiving end device according to claim 42, wherein the measuring module is specifically configured to: according to the M CSI-RS indication tables in the received CQI report request message The CQI measurement is performed in the order of the illustrated CSI-RS configuration.

The receiving end device according to claim 42, wherein the measuring module is specifically configured to:: M pieces represented by M CSI-RS configuration indications in the received CQI request message One or more CSII measurements are selected in the CSI-RS configuration. Correspondingly, the reporting module is specifically configured to: report the measurement result, and the CSI-RS configuration indication corresponding to the measurement result.

The receiving device according to claim 43 or 44, wherein the reporting module is configured to: report a method in which a system bandwidth corresponds to a CQI measurement result.

The receiving device according to claim 43 or 44, wherein the reporting module is configured to: report, by using a selected one of the p subbands in the system bandwidth, a CQI measurement result, where the subband is Subbands selected within the system bandwidth, or subbands selected by different bandwidth portions.

The receiving end device according to claim 43 or 44, wherein the reporting module is configured to: report, by using one subband, a CQI measurement result, where the subband is selected for any bandwidth part. Out of the sub-band.

The receiving device according to any one of claims 42 to 47, wherein the receiving device is a user device.

49. A transmitting device, comprising:

The sender device according to claim 49, wherein the notification message is a PDCCH message, and the notification module specifically includes:

a first unit, configured to add a CRS indication to the PDCCH message, where the CRS indicates a frequency domain offset used to indicate a CRS resource of a serving node or a CRS in a current subframe relative to a serving cell, and The PDCCH message added with the CRS indication is sent to the receiving end device.

The device according to claim 50, wherein the first unit is configured to: add a CRS indication to a reserved bit of the PDCCH message, and send a PDCCH message added with a CRS indication to Receiver device.

The sending end device according to claim 50 or 51, wherein the notification module is further configured to: send an indication message to the receiving end device to indicate the receiving end device There is a CRS indication in the message.

A receiving device, comprising:

a determining module, configured to acquire a resource of the transmitted PDSCH, obtain a resource set, and use the resource obtained by excluding the CRS resource carried in the CRS resource message from the resource set of the PDSCH as a PDSCH message received by the receiving end device. Transmission resources.

A communication system, comprising: the transmitting device according to any one of claims 29 to 41, and the receiving device according to any one of claims 42 to 48;

Or a transmitting device according to any one of claims 49 to 52, and a receiving device according to claim 53.