WO2014121511A1

WO2014121511A1 - Information sending method, information receiving method and device thereof

Info

Publication number: WO2014121511A1
Application number: PCT/CN2013/071559
Authority: WO
Inventors: 官磊; 薛丽霞; 孙静原
Original assignee: 华为技术有限公司
Priority date: 2013-02-08
Filing date: 2013-02-08
Publication date: 2014-08-14
Also published as: CN104106296A

Abstract

Provided are an information sending method, an information receiving method and a device thereof, in order to solve the problem of how to send or receive a CSI-RS so as to reduce interference. The method comprises: a UE acquiring first configuration information about a common CSI-RS, the first configuration information being used for indicating the transmission of a first resource unit set of the common CSI-RS; the UE determining to transmit at least one first resource of a common channel, the first resource comprising the first resource unit set of the common CSI-RS; and the UE receiving the common channel over the first resource bypassing the first resource unit set. The device comprises a base station or a user equipment. The technical solution can avoid the interference of a common CSI-RS to a common channel, and by means of first configuration information about the common CSI-RS, can expand CSI-RS resources.

Description

Method for transmitting information, method for receiving information and device thereof

Embodiments of the present invention relate to the field of wireless communications, and more particularly, to a method of transmitting information, a method of receiving information, and an apparatus therefor. Background technique

In the Rel-10 version and the previous LTE (Long Term Evolution) systems of the Rel-8 and Rel-9 versions, each LTE carrier is backward compatible, ie each subsequent version of the LTE system is always The initial access and service of the previous version of the LTE user equipment (UE, User Equipment) can be supported, which requires each carrier to send the same synchronization signal and physical broadcast as the Rel-8 version of the LTE system resource location and transmission mode. Channel (PBCH, physical broadcast channel), system information block (system information block), physical downlink control channel (PDCCH), and cell-specific reference signals (CRS, cell-specific reference) Signal) and so on. This type of carrier is called a carrier of the backward compatible type. Specifically, the synchronization signal is located in subframe 0 and subframe 5, and the period is 5 subframes. The PBCH carries the MIB (Master Information Block) and the System Information Block (SIB), wherein the MIB is located in the subframe 0, and the period is one radio frame; the SIB can be further divided into SIB1 to SIB13, where the SIB1 is sent. The period is 20ms, located in subframe 5 of the even radio frame, and other SIBs, such as SIB2 to SIB13, have no fixed time, but are transmitted within a specific time window. The CRS is used for time-frequency fine synchronization, data demodulation, channel state information measurement, and radio resource management measurement, and is required to be transmitted in each subframe and in each RB. The PDCCH is located in the search space of the control region, where the control region is located in the first n symbols of one subframe in the time domain, and n is one of the natural numbers of 1-4, and the bandwidth of the entire carrier is occupied in the frequency domain, where the transmitted PDCCH passes The interleaving is broken up to the entire downlink carrier bandwidth to obtain the frequency diversity gain. The search space includes a common search space (CSS, Common Search Space) and a search space (USS, Unique Search Space), where the CSS is a search space that needs to be detected by multiple or all UEs, and the PDCCH carried therein is used to schedule the SIB. For the paging, RACH acknowledgment or group power control commands, etc., the USS is a specific search space for each UE, and only carries control information for a certain UE.

The Rel-10 version of LTE introduces Layer 1 to Layer 8 user-specific reference signals (UERS,

UE-specific Reference Signal) and channel status information reference signal (CSI-RS, Channel State Information Reference Signal ). UERS is used for data demodulation and is precoded with data, while CSI-RS is used for CSI measurements. The CSI-RS is configured to the UE through RRC-specific signaling, that is, the UE is specifically configured and periodic. The Rel-10 UE bypasses the resource unit occupied by the CSI-RS when performing data rate-matching. In addition, the CSI-RS is not transmitted on the subframe in which the SIB1 and the paging are sent. The so-called paging refers to the subframe in which the current cell can be used to send the paging, not just the paging subframe of the UE. That is, the UE assumes that no CSI-RS exists on these subframes; if the CSI-RS of the UE collides with the synchronization signal or the PBCH, the CSI-RS is not transmitted on the subframe in which the synchronization signal or the PBCH is transmitted. For example, taking the FDD system as an example, the paging subframe of the cell level is configured as subframes 0, 4, 5, and 9, and considering the fixed subframe configuration of the synchronization signal, PBCH, and SIB1, the CSI-RS can be obtained. Subframes 0, 4, 5, and 9 are not sent.

In the Rel-11 version or future version of the LTE-A (long-term evolution advanced) system, a new carrier type (NCT) is introduced. The lower version of the LTE UE cannot be initially accessed from the NCT, but the NCT can allow the UE of the new version of the LTE system to perform initial access. In addition, there may be no traditional control region on the NCT, that is, no PDCCH is transmitted, and the PDCCH is replaced by an enhanced physical downlink control channel (ePDCCH, enhanced PDCCH). The ePDCCH is transmitted based on the channel precoding, and the resource configuration of the ePDCCH is similar to the downlink data channel, that is, the resource block pair (RB pair) is allocated. Specifically, the ePDCCH may be allocated a physical resource block pair (PRB pair) set, where the set includes an ePDCCH search space, for the UE to detect the ePDCCH in the search space. The ePDCCH is similar to the PDCCH, and the search space may include enhanced specific search space (eUSS, enhanced CSS) and enhanced common search space (eCSS, enhanced CSS). For the eUSS area, the UE performs rate matching on the CSI-RS when demodulating the ePDCCH, and for the eCSS area, how to transmit or receive the CSI-RS on the NCT to reduce interference when the UE demodulates the ePDCCH is to be solved. problem. Summary of the invention

In view of this, embodiments of the present invention provide a method for transmitting information, a method for receiving information, and a device thereof, to solve the problem of how to transmit or receive a CSI-RS to reduce interference.

The first aspect provides a method for receiving information, including: acquiring, by a UE, first configuration information of a common CSI-RS, where the first configuration information is used to indicate that a first resource element set including a common CSI-RS is transmitted; At least one first resource of the common channel, the first resource includes a public a first set of resource elements of the CSI-RS; the UE circumvents the first set of resource elements on the first resource to receive the common channel.

In a first possible implementation manner, the UE acquires the pre-configured first configuration information; or the UE acquires the first configuration information by using the synchronization signal and/or the broadcast channel; or the UE obtains the frame number, the subframe number, or the slot number. The first configuration information, where the frame number, the subframe number, or the slot number has an association relationship with the first configuration information.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a second possible implementation manner, the common channel includes a first control channel and/or a first data channel, and the first control channel is used to schedule the system At least one of an information block, paging information, random access response information, and group power control information, the first data channel is configured to carry at least one of a system information block, paging information, and random access response information.

With reference to the first aspect or the foregoing possible implementation manner of the first aspect, in a third possible implementation manner, the UE acquires second configuration information, where the second configuration information is used to indicate a second resource unit set of the transmission specific CSI-RS. The UE determines a second resource that transmits the dedicated channel, and the second resource includes a second resource unit set; the UE bypasses the second resource unit set to receive the dedicated channel on the second resource.

In conjunction with the third possible implementation of the first aspect, in a fourth possible implementation, the first resource includes a second resource unit set; and/or the second resource includes the first resource unit set.

With reference to the first aspect or the foregoing possible implementation manner of the first aspect, in a fifth possible implementation manner, if the first resource unit set overlaps or partially overlaps with the second resource unit set, the UE utilizes the second resource unit set The dedicated CSI-RS transmitted on the resource unit overlapping with the first resource unit set is measured; or if the first resource unit set partially overlaps or does not overlap with the second resource unit set, and the first resource includes the second resource unit set And the UE does not use the dedicated CSI-RS sent on the resource unit that does not overlap with the first resource unit set in the second resource unit set to perform measurement; or if the first resource unit set partially overlaps or does not overlap with the second resource unit set And the first resource includes the second resource unit set, and the UE performs measurement by using a zero-power dedicated CSI-RS sent on the resource unit that does not overlap with the first resource unit set in the second resource unit set; or if the first resource The set of cells overlaps or does not overlap with the second set of resource elements, and the first resource includes the second resource unit In the aggregate, the UE does not receive the dedicated CSI-RS on the resource unit that does not overlap with the first resource unit set in the second resource unit set.

With reference to the first aspect or the foregoing possible implementation manner of the first aspect, in a sixth possible implementation manner, the UE performs synchronization and/or radio resource management by using a common CSI-RS in the first subframe set. The measurement, where the second set of subframes includes subframes other than the first set of subframes.

With reference to the sixth possible implementation manner of the first aspect, in a seventh possible implementation manner, the scrambling manner of the common CSI-RS in the first subframe set is determined by the physical cell identifier; The scrambling mode of the common CSI-RS is determined by the virtual cell identity.

With reference to the sixth or the seventh possible implementation of the first aspect, in an eighth possible implementation, the first subframe set is one of the following sets: sending a CRS subframe set and/or transmitting a synchronization signal Subframe collection.

With reference to the first aspect or the foregoing possible implementation manner of the first aspect, in the ninth possible implementation, the first resource or the second resource is one of the following: at least one PRB, at least one PRB pair, at least one control A channel unit and at least one resource unit group.

A second aspect provides a method for transmitting information, including: determining, by a base station, first configuration information, where the first configuration information is used to indicate a first resource unit set for transmitting a common CSI-RS; and the base station determines a first resource for transmitting a common channel. The first resource includes a first resource unit set; the base station sends the common channel by bypassing the first resource unit set on the first resource.

In a first possible implementation manner, the base station sends the first configuration information to the UE by using a synchronization signal and/or a broadcast channel; or the base station indicates the first configuration information to the UE by using a frame number, a subframe number, or a slot number, where the frame The number, the subframe number, or the slot number have an association relationship with the first configuration information.

With reference to the second aspect or the first possible implementation manner of the second aspect, in a second possible implementation manner, the common channel includes a first control channel and/or a first data channel, and the first control channel is used to schedule the system At least one of an information block, paging information, random access response information, and group power control information, the first data channel is configured to carry at least one of a system information block, paging information, and random access response information.

With reference to the second aspect or the foregoing possible implementation manner of the second aspect, in a third possible implementation, the base station determines the second configuration information, where the second configuration information is used to indicate the second resource unit set of the transmission specific CSI-RS. The base station determines a second resource for transmitting the dedicated channel, and the second resource includes a second resource unit set; the base station circumscribes the second resource unit set to transmit the dedicated channel on the second resource.

With reference to the second aspect or the foregoing possible implementation manner of the second aspect, in a fourth possible implementation, the first resource includes the second resource unit set; and/or the second resource includes the first resource unit set.

With reference to the second aspect or the foregoing possible implementation manner of the second aspect, in a fifth possible implementation manner, if the first resource unit set overlaps or partially overlaps with the second resource unit set, Dedicated on the resource unit overlapping the first resource unit set in the second resource unit set

The CSI-RS is used for measurement by the UE; or if the first resource element set partially overlaps or does not overlap with the second resource element set, and the first resource includes the second resource element set, the second resource element set is the first The dedicated CSI-RS transmitted on the resource unit that does not overlap the resource unit set is used to bypass when measured by the UE; or if the first resource unit set partially overlaps or does not overlap with the second resource unit set, and the first resource includes the first resource a set of two resource units, wherein a zero-power dedicated CSI-RS transmitted on a resource unit that does not overlap with the first resource unit set in the second resource unit set is used for measurement by the UE; or if the first resource unit set and the second The resource unit set partially overlaps or does not overlap, and the first resource includes the second resource unit set, and the resource unit in the second resource unit set that does not overlap with the first resource unit set is used to bypass when the UE receives the dedicated CSI-RS. .

With reference to the second aspect or the foregoing possible implementation manner of the second aspect, in a sixth possible implementation manner, the common CSI-RS in the first subframe set is used for synchronization and/or radio resource management measurement by the UE, The second subframe set includes subframes other than the first subframe set.

With reference to the sixth possible implementation manner of the second aspect, in a seventh possible implementation, the scrambling manner of the common CSI-RS in the first subframe set is determined by the physical cell identifier; The scrambling mode of the common CSI-RS is determined by the virtual cell identity.

With reference to the sixth or the seventh possible implementation manner of the second aspect, in the eighth possible implementation manner, the first subframe set is the following set: a subframe set that sends the CRS and/or a sub-sequence that sends the synchronization signal Frame collection.

With reference to the second aspect or the foregoing possible implementation manner of the second aspect, in the ninth possible implementation, the first resource or the second resource is one of the following: at least one PRB, at least one PRB pair, at least one control A channel unit and at least one resource unit group.

A third aspect provides a method for transmitting information, including: determining, by a base station, a first resource of a first common channel, where the first common channel includes a physical broadcast channel, a control channel for scheduling a system information block, and a control channel for scheduling paging information. At least one of the base stations; the base station maps the first common channel to the first resource by bypassing the resources of the first reference signal, where the first reference signal includes the cell-specific reference signal CRS and/or the synchronization signal, and does not include the non- Zero-power CSI-RS; The base station transmits a first common channel on the first resource.

In a first possible implementation manner, before the base station sends the first common channel on the first resource, the base station configures a channel state information reference signal CSI-RS resource for the UE, where the CSI-RS includes a non-zero power CSI-RS and/or Or a zero-power CSI-RS, where the first resource and the CSI-RS resource overlap. With reference to the third aspect or the foregoing possible implementation manner of the third aspect, in a second possible implementation manner, the first reference signal does not include a zero-power CSI-RS.

With the second possible implementation of the third aspect, in a third possible implementation, the base station uses the zero-power CSI of the overlapping portion with the first resource before the base station sends the first common channel on the first resource. - RS puncturing the first common channel.

With reference to the third aspect or the foregoing possible implementation manner of the third aspect, in a fourth possible implementation manner, the base station determines a second resource of the second common channel and/or the dedicated channel, where the second common channel includes scheduling random connection a control channel for the response information and/or a control channel for scheduling the group power control information, the dedicated channel comprising a C-RNTI or SPS-C-RNTI scrambled control channel or a control channel scheduled data channel; the base station bypassing the second reference Signaling the second common channel and/or the dedicated channel to the second resource; the second reference signal comprises at least one of a CRS, a synchronization signal and a CSI-RS; the base station transmitting the second common channel on the second resource And / or dedicated channel.

With reference to the fourth possible implementation manner of the third aspect, in a fifth possible implementation, the first resource or the second resource is one of the following: at least one PRB, at least one PRB pair, and at least one control channel unit And at least one resource unit group.

A fourth aspect provides a method for receiving information, including determining, by a UE, a first resource of a first common channel, where the first common channel includes a physical broadcast channel, scheduling a control channel of a system information block, and controlling a paging channel in a control channel. At least one of the UEs: receiving, by the UE, the first common channel on the first resource, the first reference signal includes a cell-specific reference signal CRS and/or a synchronization signal, and does not include a non-zero power CSI-RS.

In a first possible implementation, before the UE receives the first common channel on the first resource, the UE acquires the configured CSI-RS resource, where the CSI-RS includes a non-zero power CSI-RS and/or a zero-power CSI- RS, the first resource and the CSI-RS resource overlap.

With reference to the fourth aspect or the foregoing possible implementation manner of the fourth aspect, in a second possible implementation manner, the first reference signal does not include a zero-power CSI-RS.

With reference to the fourth aspect or the foregoing possible implementation manner of the fourth aspect, in a third possible implementation manner, the UE does not perform measurement by using a non-zero power CSI-RS that overlaps with the first resource; and/or the UE utilizes The zero-power CSI-RS of the first resource overlap portion is measured; and/or the UE does not receive the CSI-RS or the non-zero-power CSI-RS on the resource overlapping the first resource.

With reference to the fourth aspect or the foregoing possible implementation manner of the fourth aspect, in a fourth possible implementation manner, the UE determines at least one second resource of the second common channel and/or the dedicated channel, where the The second common channel includes a control channel for scheduling random access response information and/or a control channel for scheduling group power control information, and the dedicated channel includes a C-RNTI or SPS-C-RNTI scrambled control channel or a control channel scheduled data channel; The UE receives the second common channel by bypassing the second reference signal on the second resource, where the second reference signal includes at least one of a CRS, a synchronization signal, and a CSI-RS.

With the fourth possible implementation of the fourth aspect, in a fifth possible implementation manner, when the UE receives the second common channel and/or the dedicated channel on the first resource, the UE uses the overlap with the second resource. Part of the CSI-RS is measured.

With reference to the fourth possible implementation of the fourth aspect, in a sixth possible implementation, the first resource or the second resource is one of the following: at least one PRB, at least one PRB pair, and at least one control channel unit And at least one resource unit group.

A fifth aspect provides a user equipment, including a first acquiring unit, a first determining unit, and a receiving unit: a first acquiring unit, configured to acquire first configuration information, where the first configuration information is used to indicate that a common CSI-RS is transmitted. a first determining unit, configured to determine, according to the first configuration information acquired by the first acquiring unit, a first resource that transmits a common channel, where the first resource includes a first resource unit set, and the receiving unit is configured to The first resource determined by the first determining unit bypasses the first resource unit set to receive the common channel.

In a first possible implementation manner, the first acquiring unit is specifically configured to: obtain pre-configured first configuration information; or acquire first configuration information by using a synchronization signal and/or a broadcast channel; or according to a frame number, a subframe number Or the slot number obtains the first configuration information, where the frame number, the subframe number, or the slot number has an association relationship with the first configuration information.

With reference to the fifth aspect or the foregoing possible implementation manner of the fifth aspect, in a second possible implementation manner, the common channel used by the sending unit includes a first control channel and/or a first data channel, where the first control channel is used. And at least one of scheduling system information block, paging information, random access response information, and group power control information, where the first data channel is used to carry at least one of a system information block, paging information, and random access response information. .

With reference to the fifth aspect or the foregoing possible implementation manner of the fifth aspect, in a third possible implementation, the second obtaining unit, the second determining unit, the second obtaining unit, configured to obtain the second configuration information, The second configuration information is used to indicate a second resource unit set for transmitting the dedicated CSI-RS, and the second determining unit is configured to determine, according to the second configuration information acquired by the second obtaining unit, the second resource of the transmission dedicated channel, where the second resource includes a second resource unit set; the receiving unit is further configured to receive the dedicated channel by bypassing the second resource unit set on the second resource. With reference to the third possible implementation manner of the fifth aspect, in a fourth possible implementation, the first resource includes the second resource unit set; and/or the second resource includes the first resource unit set.

With reference to the fifth aspect or the foregoing possible implementation manner of the fifth aspect, in a fifth possible implementation manner, the measuring unit is further included:

If the first resource unit set overlaps or partially overlaps with the second resource unit set, the measurement unit is configured to perform measurement by using a dedicated CSI-RS sent on the resource unit overlapping the first resource unit set in the second resource unit set; or If the first resource unit set partially overlaps or does not overlap with the second resource unit set, and the first resource includes the second resource unit set, the measuring unit is configured to not use the second resource unit set and does not overlap with the first resource unit set. The dedicated CSI-RS transmitted on the resource unit performs measurement; or if the first resource unit set partially overlaps or does not overlap with the second resource unit set, and the first resource includes the second resource unit set, the measurement unit is used to utilize the Measured by a zero-power dedicated CSI-RS transmitted on a resource unit that does not overlap with the first resource unit set in the second resource unit set; or if the first resource unit set partially overlaps or does not overlap with the second resource unit set, and A resource includes a second resource unit set, and the receiving unit is further configured to not be in the second resource list Receiving a dedicated set of CSI-RS resource elements of the first set of resource elements do not overlap.

With reference to the fifth aspect or the foregoing possible implementation manner of the fifth aspect, in a sixth possible implementation, the measuring unit is further configured to: use the common CSI-RS in the first subframe set to perform synchronization and/or radio resources. The measurement is managed, wherein the second set of subframes includes subframes other than the first set of subframes.

With reference to the sixth possible implementation manner of the fifth aspect, in a seventh possible implementation, the apparatus includes: a descrambling unit, configured to determine, by using a physical cell identifier, a common CSI in the first subframe set. The descrambling mode of the RS; the descrambling mode of the common CSI-RS in the second subframe set is determined by the virtual cell identifier.

With reference to the sixth or seventh possible implementation manner of the fifth aspect, in the eighth possible implementation, the first subframe set used by the measurement unit is the following set: a subframe set that sends the CRS and/or sends The set of subframes of the sync signal.

With reference to the fifth aspect or the foregoing possible implementation manner of the fifth aspect, in the ninth possible implementation manner, the first resource used by the first determining unit or the second resource used by the second determining unit is one of the following: At least one PRB, at least one PRB pair, at least one control channel element, and at least one resource element group.

In a sixth aspect, a base station is provided, including a first determining unit, a second determining unit, and a sending a first determining unit, configured to determine first configuration information, where the first configuration information is used to indicate a first resource unit set for transmitting a common CSI-RS, and the second determining unit is configured to determine, according to the first determining unit, the first The configuration information determines a first resource for transmitting a common channel, where the first resource includes a first resource unit set; and the sending unit sends the common channel by bypassing the first resource unit set on the first resource determined by the second determining unit.

In a first possible implementation, the sending unit is specifically configured to: send the first configuration information to the UE by using a synchronization signal and/or a broadcast channel; or indicate the first configuration to the UE by using a frame number, a subframe number, or a slot number Information, where the frame number, the subframe number, or the slot number has an association relationship with the first configuration information.

With reference to the sixth aspect or the foregoing possible implementation manner of the sixth aspect, in a second possible implementation manner, the common channel used by the sending unit includes a first control channel and/or a first data channel, where the first control channel is used. And at least one of scheduling system information block, paging information, random access response information, and group power control information, where the first data channel is used to carry at least one of a system information block, paging information, and random access response information. .

With reference to the sixth aspect or the foregoing possible implementation manner of the sixth aspect, in a third possible implementation manner, the third determining unit and the fourth determining unit are further included:

a third determining unit, configured to determine second configuration information, where the second configuration information is used to indicate a second resource unit set for transmitting the dedicated CSI-RS, and fourth determining unit, configured to use the second configuration information determined by the third determining unit Determining a second resource of the transmission dedicated channel, the second resource includes a second resource unit set, and the sending unit is further configured to send the dedicated channel by bypassing the second resource unit set on the second resource.

With reference to the third possible implementation manner of the sixth aspect, in a fourth possible implementation, the first resource includes the second resource unit set; and/or the second resource includes the first resource unit set.

With the sixth aspect or the foregoing possible implementation manner of the sixth aspect, in a fifth possible implementation manner, if the first resource unit set overlaps or partially overlaps with the second resource unit set, the sending unit is specifically configured to be used in a dedicated CSI-RS transmitted on a resource unit overlapping the first resource element set in the two resource element set for measurement by the UE; or if the first resource element set partially overlaps or does not overlap with the second resource element set, and A resource includes a second set of resource elements, and the sending unit is specifically configured to bypass the dedicated CSI-RS sent on the resource unit that does not overlap with the first resource unit set in the second resource unit set for measurement by the UE; Or if the first resource unit set partially overlaps or does not overlap with the second resource unit set, and the first resource includes the second resource unit set, the sending unit is specifically configured to use the first resource unit set in the second resource unit set. A zero-power dedicated CSI-RS transmitted on a non-overlapping resource unit is used for measurement by the UE; or if the first resource element set partially overlaps or does not overlap with the second resource element set, and the first resource includes the second resource The unit set, the resource unit in the second resource unit set used by the sending unit that does not overlap with the first resource unit set is used to bypass when the UE receives the dedicated CSI-RS.

With reference to the sixth aspect or the foregoing possible implementation manner of the sixth aspect, in a sixth possible implementation manner, the common CSI-RS in the first subframe set is used for synchronization and/or radio resource management measurement by the UE, The second subframe set includes subframes other than the first subframe set.

With reference to the sixth possible implementation manner of the sixth aspect, in a seventh possible implementation, the method further includes: a scrambling unit, configured to determine, by using the physical cell identifier, a common CSI in the first subframe set. The scrambling mode of the RS; determining the scrambling mode of the common CSI-RS in the second subframe set by the virtual cell identifier.

With reference to the sixth or the seventh possible implementation manner of the sixth aspect, in an eighth possible implementation manner, the first subframe set is a set of: sending a subframe set of the CRS and/or sending a synchronization signal Frame collection.

With reference to the sixth aspect or the foregoing possible implementation manner of the sixth aspect, in the ninth possible implementation manner, the first resource used by the first determining unit or the second resource used by the third determining unit is one of the following: At least one PRB, at least one PRB pair, at least one control channel element, and at least one resource element group.

In a seventh aspect, a base station is provided, including a first determining unit, a first mapping unit, and a sending unit: a first determining unit, configured to determine a first resource of a first common channel, where the first common channel includes a physical broadcast channel, At least one of a control channel for scheduling a system information block and a control channel for scheduling paging information; a first mapping unit, configured to map the first common channel to the first resource by bypassing resources of the first reference signal And the first reference signal includes a cell-specific reference signal CRS and/or a synchronization signal, and does not include a non-zero-power CSI-RS; and the sending unit is configured to send the first common channel on the first resource.

In a first possible implementation, the configuration unit further includes: a configuration unit, configured to configure a channel state information reference signal CSI-RS resource, CSI-, for the UE before the sending unit sends the first common channel on the first resource The RS includes a non-zero power CSI-RS and/or a zero power CSI-RS, and the first resource and the CSI-RS resource overlap.

With reference to the seventh aspect or the foregoing possible implementation manner of the seventh aspect, in a second possible implementation manner, the first reference signal used by the first mapping unit does not include a zero-power CSI-RS. With reference to the seventh aspect or the foregoing possible implementation manner of the seventh aspect, in a third possible implementation, the method further includes: a puncturing unit, configured to: send, by the sending unit, the first common channel on the first resource Previously, the first common channel is punctured with a zero-power CSI-RS that overlaps with the first resource.

With reference to the seventh aspect or the foregoing possible implementation manner of the seventh aspect, in a fourth possible implementation, the second determining unit and the second mapping unit are further included: a second determining unit, configured to determine the second common channel and And a second resource of the dedicated channel, wherein the second common channel comprises a control channel for scheduling random access response information and/or a control channel for scheduling group power control information, the dedicated channel comprising C-RNTI or SPS-C-RNTI scrambling a control channel or a control channel scheduled data channel; a second mapping unit, configured to map the second common channel and/or the dedicated channel to the second resource by bypassing the second reference signal, where the second reference signal includes a CRS And at least one of a synchronization signal and a CSI-RS; the sending unit is further configured to send the second common channel and/or the dedicated channel on the second resource.

With reference to the seventh aspect or the foregoing possible implementation manner of the seventh aspect, in a fifth possible implementation manner, the first resource used by the first determining unit or the second resource used by the second determining unit is one of the following: At least one PRB, at least one PRB pair, at least one control channel element, and at least one resource element group.

According to an eighth aspect, a user equipment is provided, including a first determining unit and a receiving unit: a first determining unit, configured to determine a first resource of a first common channel, where the first common channel includes a physical broadcast channel, and a scheduling system information block The control channel is configured to receive at least one of the control channels of the paging information, and the receiving unit is configured to receive the first common channel by bypassing the first reference signal on the first resource determined by the first determining unit, where the first reference signal includes Cell-specific reference signal CRS and/or synchronization signal, and does not include non-zero power CSI-RS.

In a first possible implementation, the method further includes: an acquiring unit, configured to: acquire, by the receiving unit, the configured CSI-RS resource, where the CSI-RS includes non-zero power, before receiving the first common channel on the first resource. The CSI-RS and/or the zero-power CSI-RS, the first resource and the CSI-RS resource overlap.

In conjunction with the foregoing possible implementation of the eighth aspect or the eighth aspect, in a second possible implementation manner, the first reference signal used by the receiving unit does not include a zero-power CSI-RS.

With reference to the first or second possible implementation manner of the eighth aspect, in a third possible implementation, the method further includes: a measuring unit, configured to: not use the non-zero power CSI overlapping with the first resource - measuring the RS; and/or measuring unit for measuring with a zero-power CSI-RS that overlaps with the first resource; and/or receiving unit, specifically for not overlapping the first resource The CSI-RS or non-zero power CSI-RS is received on the divided resources.

With reference to the eighth aspect or the foregoing possible implementation manner of the eighth aspect, in a fourth possible implementation, the second determining unit is further included: a second determining unit, configured to determine the second common channel and/or the dedicated channel At least one second resource, where the second common channel includes a control channel for scheduling random access response information and/or a control channel for scheduling group power control information, and the dedicated channel includes a C-RNTI or SPS-C-RNTI scrambled control channel Or a control channel scheduled data channel; the receiving unit is further configured to receive the second common channel by bypassing the second reference signal on the second resource, where the second reference signal includes at least one of a CRS, a synchronization signal, and a CSI-RS.

With reference to the fourth possible implementation manner of the eighth aspect, in a fifth possible implementation, the measuring unit is further configured to: when the UE receives the second common channel and/or the dedicated channel on the first resource, The CSI-RS that overlaps with the second resource is measured.

With reference to the fourth possible implementation of the eighth aspect, in a sixth possible implementation, the first resource used by the first determining unit or the second resource used by the second determining unit is one of the following: at least one PRB, at least one PRB pair, at least one control channel element, and at least one resource element group.

A ninth aspect provides a user equipment, including a processor, a memory, and a receiver: the memory storage processor performs information of: the processor acquires first configuration information, where the first configuration information is used to indicate that the public CSI is transmitted. a first resource unit set of the RS; determining, according to the acquired first configuration information, a first resource that transmits a common channel, where the first resource includes a first resource unit set; and the receiver bypasses the first resource on the first resource determined by the processor The set of units receives the common channel.

In a first possible implementation manner, the processor specifically acquires the pre-configured first configuration information; or acquires the first configuration information by using a synchronization signal and/or a broadcast channel; or obtains according to a frame number, a subframe number, or a slot number. The first configuration information, where the frame number, the subframe number, or the slot number has an association relationship with the first configuration information.

With reference to the ninth aspect or the foregoing possible implementation manner of the ninth aspect, in a second possible implementation manner, the common channel used by the receiver includes a first control channel and/or a first data channel, where the first control channel is used And at least one of scheduling system information block, paging information, random access response information, and group power control information, where the first data channel is used to carry at least one of a system information block, paging information, and random access response information. .

With reference to the ninth aspect or the foregoing possible implementation manner of the ninth aspect, in a third possible implementation manner, the processor further acquires second configuration information, where the second configuration information is used to indicate that the transmission is dedicated. a second resource unit set of the CSI-RS; the processor determines, according to the acquired second configuration information, a second resource that transmits a dedicated channel, where the second resource includes a second resource unit set; and the receiver further bypasses the second resource The two resource unit sets receive a dedicated channel.

With reference to the third possible implementation manner of the ninth aspect, in a fourth possible implementation, the first resource includes the second resource unit set; and/or the second resource includes the first resource unit set.

With reference to the ninth aspect or the foregoing possible implementation manner of the ninth aspect, in a fifth possible implementation, if the first resource unit set overlaps or partially overlaps with the second resource unit set, the processor is further configured to use the Dedicating a dedicated CSI-RS transmitted on a resource unit overlapping the first resource unit set in the second resource unit set; or if the first resource unit set partially overlaps or does not overlap with the second resource unit set, and the first resource includes a set of two resource units, the processor is further configured to perform measurement without using a dedicated CSI-RS sent on a resource unit that does not overlap with the first resource unit set in the second resource unit set; or if the first resource unit set and the second The resource unit set partially overlaps or does not overlap, and the first resource includes the second resource unit set, and the processor is further configured to utilize zero power sent on the resource unit that does not overlap with the first resource unit set in the second resource unit set. Dedicated CSI-RS for measurement; or if the first set of resource elements overlaps partially with the second set of resource elements or not And overlapping, and the first resource includes the second resource unit set, and the receiver is further configured to receive the dedicated CSI-RS on the resource unit that does not overlap with the first resource unit set in the second resource unit set.

With reference to the ninth aspect or the foregoing possible implementation manner of the ninth aspect, in a sixth possible implementation manner, the processor further performs synchronization and/or radio resource management measurement by using a common CSI-RS in the first subframe set, The second subframe set includes subframes other than the first subframe set.

With reference to the sixth possible implementation manner of the ninth aspect, in a seventh possible implementation manner, the processor further determines, by using the physical cell identifier, a descrambling manner of the common CSI-RS in the first subframe set; The identity determines the descrambling manner of the common CSI-RS in the second set of subframes.

With reference to the sixth or the seventh possible implementation manner of the ninth aspect, in the eighth possible implementation, the first subframe set used by the processor is the following set: sending a CRS subframe set and/or sending The set of subframes of the sync signal.

With reference to the ninth aspect or the foregoing possible implementation manner of the ninth aspect, in a ninth possible implementation manner, the first resource used by the processor or the second resource used is one of the following: at least one PRB, at least one PRB pair, at least one control channel element and at least one resource element group.

A tenth aspect provides a base station, including: a processor, a memory, and a transmitter, where The storage storage processor performs the following information; the processor determines first configuration information, the first configuration information is used to indicate a first resource unit set for transmitting the common CSI-RS; and determining to transmit the common channel according to the determined first configuration information The first resource, the first resource includes a first resource unit set; and the transmitter sends the common channel by bypassing the first resource unit set on the first resource determined by the processor.

In a first possible implementation, the transmitter sends the first configuration information to the UE by using a synchronization signal and/or a broadcast channel; or indicating the first configuration information to the UE by using a frame number, a subframe number, or a slot number, where the frame The number, the subframe number, or the slot number have an association relationship with the first configuration information.

With reference to the foregoing possible implementation manner of the tenth aspect or the tenth aspect, in a second possible implementation manner, the common channel used by the transmitter includes a first control channel and/or a first data channel, where the first control channel is used And at least one of scheduling system information block, paging information, random access response information, and group power control information, where the first data channel is used to carry at least one of a system information block, paging information, and random access response information. .

With reference to the foregoing possible implementation manner of the tenth aspect or the tenth aspect, in a third possible implementation, the processor further determines second configuration information, where the second configuration information is used to indicate the second resource of the dedicated CSI-RS. a unit set; determining, according to the second configuration information determined by the third determining unit, the second resource of the transmission dedicated channel, where the second resource includes the second resource unit set; and the transmitter further bypassing the second resource unit set and transmitting the second resource channel.

With reference to the third possible implementation manner of the tenth aspect, in a fourth possible implementation, the first resource includes the second resource unit set; and/or the second resource includes the first resource unit set.

With reference to the foregoing possible implementation manner of the tenth aspect or the tenth aspect, in a fifth possible implementation manner, if the first resource unit set overlaps or partially overlaps with the second resource unit set, the transmitter is specifically in the second resource. a dedicated CSI-RS transmitted on a resource unit overlapping the first resource element set in the unit set for measurement by the UE; or if the first resource element set partially overlaps or does not overlap with the second resource element set, and the first resource Including the second resource unit set, the transmitter specifically bypasses the dedicated CSI-RS sent on the resource unit that does not overlap with the first resource unit set in the second resource unit set, for bypassing when the UE performs measurement; or if the first If the resource unit set overlaps or does not overlap with the second resource unit set, and the first resource includes the second resource unit set, the sender specifically sends the resource unit that does not overlap with the first resource unit set in the second resource unit set. Zero-power dedicated CSI-RS for measurement by the UE; or if the first resource unit set and the second resource unit set part are heavy Or non-overlapping, and the first set of resource elements comprises a second resource, the second resource unit is transmitted using a first set of the set of resource elements do not overlap The resource unit is used to bypass when the UE receives the dedicated CSI-RS.

With reference to the foregoing possible implementation manner of the tenth aspect or the tenth aspect, in a sixth possible implementation manner, the common CSI-RS in the first subframe set is used for synchronization and/or radio resource management measurement by the UE, The second subframe set includes subframes other than the first subframe set.

With reference to the sixth possible implementation manner of the tenth aspect, in a seventh possible implementation manner, the processor further determines, by using a physical cell identifier, a scrambling manner of a common CSI-RS in the first subframe set; The identification determines the scrambling manner of the common CSI-RS in the second subframe set.

With reference to the sixth or the seventh possible implementation manner of the tenth aspect, in an eighth possible implementation manner, the first subframe set is a set of: sending a subframe set of the CRS and/or sending a synchronization signal Frame collection.

With reference to the tenth aspect or the foregoing possible implementation manner of the tenth aspect, in a ninth possible implementation manner, the first resource used by the processor or the second resource used by the third determining unit is one of the following: at least one PRB, at least one PRB pair, at least one control channel element, and at least one resource element group.

In an eleventh aspect, a base station is provided, including: a processor, a memory, and a transmitter, wherein the memory storage processor performs information of: the processor determines a first resource of the first common channel, and the first common channel includes a physical At least one of a broadcast channel, a control channel for scheduling a system information block, and a control channel for scheduling paging information; mapping the first common channel to the first resource by bypassing resources of the first reference signal, the first reference The signal includes a cell-specific reference signal CRS and/or a synchronization signal and does not include a non-zero power CSI-RS; the transmitter transmits the first common channel on the first resource.

In a first possible implementation manner, the processor further configures a channel state information reference signal CSI-RS resource for the UE before the transmitter sends the first common channel on the first resource, where the CSI-RS includes a non-zero power CSI- RS and/or zero-power CSI-RS, the first resource and the CSI-RS resource overlap.

In conjunction with the above possible implementation of the eleventh or eleventh aspect, in a second possible implementation, the first reference signal used by the processor does not include a zero-power CSI-RS.

In conjunction with the second possible implementation of the eleventh aspect, in a third possible implementation, the processor further uses an overlapping portion with the first resource before the sending unit sends the first common channel on the first resource. The zero-power CSI-RS punctured the first common channel.

With reference to the foregoing possible implementation manner of the eleventh or eleventh aspect, in a fourth possible implementation, the processor further determines a second resource of the second common channel and/or the dedicated channel, where the The second common channel includes a control channel for scheduling random access response information and/or a control channel for scheduling group power control information, and the dedicated channel includes a C-RNTI or SPS-C-RNTI scrambled control channel or a control channel scheduled data channel; The processor maps the second common channel and/or the dedicated channel to the second resource by bypassing the second reference signal, where the second reference signal includes at least one of a CRS, a synchronization signal, and a CSI-RS; A second common channel and/or a dedicated channel is transmitted on the second resource.

With reference to the fourth possible implementation manner of the eleventh aspect, in a fifth possible implementation, the first resource or the second resource used by the processor is one of the following: at least one PRB, at least one PRB pair, At least one control channel unit and at least one resource unit group.

According to a twelfth aspect, a user equipment is provided, including: a processor, a memory, and a receiver, wherein the memory storage processor performs information of: the processor determines a first resource of the first common channel, the first common channel a physical broadcast channel, a control channel for scheduling a system information block, and at least one of a control channel for scheduling paging information; the receiver bypasses the first reference signal to receive the first common channel on the determined first resource, first The reference signal includes a cell-specific reference signal CRS and/or a synchronization signal and does not include a non-zero power CSI-RS.

In a first possible implementation manner, the processor acquires the configured CSI-RS resource, where the CSI-RS includes a non-zero power CSI-RS and/or zero, before the receiver receives the first common channel on the first resource. The power CSI-RS, the first resource and the CSI-RS resource overlap.

In conjunction with the above-described possible implementation of the twelfth aspect or the twelfth aspect, in a second possible implementation, the first reference signal used by the receiver does not include a zero-power CSI-RS.

With reference to the first or second possible implementation manner of the twelfth aspect, in a third possible implementation, the processor does not perform measurement by using a non-zero power CSI-RS that overlaps with the first resource; and Or the processor performs measurement using a zero-power CSI-RS that overlaps with the first resource; and/or the receiver does not specifically receive the CSI-RS or non-zero-power CSI-RS on the resource that overlaps the first resource.

With reference to the twelfth aspect or the foregoing possible implementation manner of the twelfth aspect, in a fourth possible implementation, the processor further determines at least one second resource of the second common channel and/or the dedicated channel, where the second The common channel includes a control channel for scheduling random access response information and/or a control channel for scheduling group power control information, and the dedicated channel includes a C-RNTI or SPS-C-RNTI scrambled control channel or a control channel scheduled data channel; The device further receives the second common channel by bypassing the second reference signal on the second resource, the second reference signal including at least one of a CRS, a synchronization signal, and a CSI-RS. With reference to the fourth possible implementation manner of the twelfth aspect, in a fifth possible implementation, the processor, when the UE receives the second common channel and/or the dedicated channel on the first resource, utilizes The CSI-RS of the overlapping portion of the two resources is measured.

With reference to the fourth possible implementation of the twelfth aspect, in a sixth possible implementation, the first resource or the second resource used by the processor is one of the following: at least one PRB, at least one PRB pair, At least one control channel unit and at least one resource unit group.

With the foregoing technical solution, the UE acquires the first configuration information, determines the first resource for the common channel, and the first resource includes the first resource unit set of the common CSI-RS, by bypassing the first resource unit set, at the first resource When the common channel is received on the remaining resource units, the interference of the common CSI-RS to the common channel can be avoided, and the CSI-RS resource can be extended by the first configuration information of the common CSI-RS. DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings to be used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only the present invention. For some embodiments, other drawings may be obtained from those of ordinary skill in the art without departing from the drawings.

1A and 1B are schematic diagrams of channels and signals on an LTE carrier in different technologies.

2 is a schematic flow chart of a method for receiving information according to an embodiment of the present invention.

FIG. 3 is a schematic flowchart of a method for transmitting information according to an embodiment of the present invention.

4 is a schematic diagram of information interaction in an embodiment of the present invention.

FIG. 5 is a schematic diagram of a CSI-RS resource pattern on a PRB pair in the prior art.

6A is a schematic diagram of an assumption of a CSI-RS when receiving a common channel according to an embodiment of the present invention. 6B is a schematic diagram of the assumption of CSI-RS when receiving a dedicated channel according to an embodiment of the present invention. FIG. 7 is a schematic flowchart of a method for transmitting information according to an embodiment of the present invention.

FIG. 8 is a schematic flowchart of a method for receiving information according to an embodiment of the present invention.

FIG. 9 is a schematic diagram of information interaction in an embodiment of the present invention.

10A and 10B are schematic block diagrams of user equipments according to an embodiment of the present invention.

11A and 11B are schematic block diagrams of a base station according to an embodiment of the present invention.

12A and 12B are schematic block diagrams of another base station according to an embodiment of the present invention.

13A and 13B are schematic block diagrams of another user equipment according to an embodiment of the present invention. FIG. 14 is a schematic block diagram of a user equipment according to an embodiment of the present invention.

Figure 15 is a schematic block diagram of a base station in accordance with an embodiment of the present invention.

FIG. 16 is a schematic block diagram of another base station according to an embodiment of the present invention.

FIG. 17 is a schematic block diagram of another user equipment according to an embodiment of the present invention. detailed description

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. It is obvious that the described embodiments are a part of the embodiments of the present 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 making creative labor are within the scope of the present invention.

The technical solution of the present invention can be applied to various communication systems, such as: Global System of Mobile Communication (GSM), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access ( WCDMA, Wideband Code Division Multiple Access Wireless), General Packet Radio Service (GPRS), Long Term Evolution (LTE), etc.

A user equipment (UE, User Equipment), which may also be called a mobile terminal (Mobile Terminal), a mobile user equipment, etc., may communicate with one or more core networks via a radio access network (eg, RAN, Radio Access Network). The user equipment may be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal, for example, a mobile device that can be portable, pocket, handheld, computer built, or in-vehicle, The wireless access network exchanges voice and/or data.

The base station may be a base station (BTS, Base Transceiver Station) in GSM or CDMA, or a base station (NodeB) in WCDMA, or an evolved base station (eNB or e-NodeB, evolutional Node B) in LTE. The present invention is not limited, but for convenience of description, the following embodiments are described by taking Node B as an example.

Additionally, the terms "system" and "network" are used interchangeably herein. The term "and/or" in this context is merely an association describing the associated object, indicating that there can be three relationships, for example, A and / or B, which can mean: A exists separately, and both A and B exist separately. B These three situations. In addition, the character "/" in this article generally indicates that the contextual object is an "or" relationship.

In the LTE system, in the time domain, one radio frame includes 10 subframes; in the frequency domain, one carrier The wave includes multiple PRB pairs. The base station is scheduled in units of RB pairs. One RB pair occupies one subframe in time and 12 Orthogonal Frequency Division Multiplexing (OFDM) subcarriers on the frequency. For a normal cyclic prefix, one subframe includes 14 OFDM symbols, and for an extended cyclic prefix, one subframe includes 12 OFDM symbols. One of the subcarriers on a symbol is the smallest resource unit, called a Resource Element.

1A is a schematic diagram of channels and signals on a backward compatible type of LTE carrier. Specifically, the synchronization signal 11 is located in subframe 0 and subframe 5, and has a period of 5 subframes. The PBCH 12 carries a Master Information Block (MIB) and a System Information Block (SIB), wherein the MIB is located in subframe 0, and the period is one radio frame; the SIB can be further divided into SIB1 to SIB13, where SIB1 The transmission period is 20ms, which is located in subframe 5 of the even radio frame. Other SIBs, such as SIB2 to SIB13, have no fixed time, but are transmitted within a specific time window. The CRS is used for time-frequency fine synchronization, data demodulation, channel state information measurement, and radio resource management measurement, and is required to be transmitted in every subframe and in each RB. The PDCCH is located in the search space of the control region 13. The PDCCH control region 13 is located in the first n symbols of one subframe in the time domain, and n is one of the natural numbers of 1-4, and the bandwidth of the entire carrier is occupied in the frequency domain, where the The PDCCH is decentralized to the entire downlink carrier bandwidth to obtain a frequency diversity gain.

For the LTE system of the Rel-10 version, the UE receives the synchronization signal, the PBCH, the SIB, the RACH response message, and the subframe of the cell-level paging, before the RRC is established, and the CSI-RS is not configured to the UE at this time. . Considering that the subframes in which the synchronization signal, the PBCH, the SIB1, and the cell-level paging are located are all fixed or specific, the UE needs to assume the CSI when receiving the synchronization signal, the PBCH, the SIB1, and the subframe of the cell-level paging. - The RS does not exist. Accordingly, the base station does not transmit CSI-RS in these subframes, which can prevent the CSI-RS from interfering with the reception of the synchronization signal, PBCH, SIB 1, and paging. The resource elements corresponding to the CSI-RS in the figure are identified by 14.

However, for the LTE system of the Rel-10 version, when the UE receives the RACH response message and the SIB other than the SIB1, for example, at least one of the SIB2 to the SIB13, the CSI-RS is not yet configured to the UE. In this case, the UE still assumes that the CSI-RS does not exist when detecting the PDSCH of the RACH response and detecting the PDSCH of other SIBs other than SIB1. However, when the base station transmits the information, if it is not in the subframe where the synchronization signal, the PBCH, the SIB1, and the cell-level paging are located, the base station may transmit the CSI-RS, that is, the UE detects the physicality of the RACH response. Downlink shared channel (Physical Downlink Shared Channel, PDSCH) and detecting PDSCH of other SIBs other than SIB 1 may be interfered by CSI-RS. The reason for this problem is that the RACH response and other SIBs other than SIB 1 have no fixed transmission time, but are in the respective transmission subframe window, so if these subframes are restricted, the CSI-RS cannot be transmitted. In the end, the CSI-RS may not be sent at all, so the solution is unacceptable.

To solve the above problem, one solution is that the base station schedules the above information (the PDSCH of the RACH response and the PDSCH of the other SIBs other than the SIB 1) in the subframe where the synchronization signal, the PBCH, the SIB 1 and the cell-level paging are located. on. For example, if the paging subframe of the current cell is subframe 9, and then consider that subframes 0 and 5 are to carry the PBCH and the synchronization signal, the above information can be scheduled on subframes 0, 5, and 9, but the problem is introduced in this way. The scheduling limit. Otherwise, the UE may still be interfered by the CSI-RS when it detects it. However, considering the interference to the PDSCH, the base station can transmit these PDSCHs in a more conservative modulation and coding manner to reduce the reception performance loss caused by CSI-RS interference.

Figure 1B is a schematic diagram of channels and signals on an LTE carrier of a new carrier type. Specifically, the PRPDCCH pair set may be allocated for the ePDCCH, where the set includes an ePDCCH search space 15 for the UE to detect the ePDCCH in the search space. In the Rel-11 version of the LTE system, the UE-specific search space (eUSS) of the ePDCCH is introduced, and the UE bypasses the CSI-RS by de-rate matching when receiving the ePDCCH in the UE-specific search space. The problem is that the CSI-RS is configured through UE-specific signaling, and different UEs can configure different CSI-RS patterns. Therefore, the above-mentioned detection of the ePDCCH may still occur? The impact of I-in CSI-RS is that the CSI-RS of other UEs may be received as an ePDCCH. This problem can be solved by the implementation of the base station, for example, the CSI-RS set seen by the UE under one base station is the same. Specifically, for example, the resource location of the non-zero-power CSI-RS configured to the UE1 is configured as the CSI-RS of the UE2, so that the total set of CSI-RSs seen by the UE1 and the UE2 are consistent, and there is no The CSI-RS interferes with ePDCCH reception in a UE-specific search space.

In the Rel-12 version or in the future LTE system, the common search space (eCSS) of the ePDCCH is introduced. In particular, considering the introduction of a new carrier type (NCT), since there is no backward compatible control region, that is, there is no backward compatible common search space, if a new carrier type is to exist independently, a natural scheme is to introduce an ePDCCH. A common search space to provide the functionality of a previously backward-compatible public search space.

Introducing the common search space of ePDCCH, there will still be problems related to CSI-RS, and And the problem is more serious than the problems of Rel-10 and Rel-11 above. Specifically, at least one of the following cases is included.

1) The downlink control information 3/3A of the original group power control is transmitted in the backward compatible control region, and there is no CSI-RS in the control region, so 3/3A is not affected by the CSI-RS, but the publicity of the ePDCCH The search space will be in units of PRB pairs and will therefore be affected by CSI-RS.

2) In future network deployments, heterogeneous networks will be deployed in large numbers. That is, some or a large number of micro cells will be deployed in the coverage of a macro cell. The macro cell and the micro cells may share the same physical cell identity. In this scenario, the number of UEs served in the macro cell will be larger than the number of UEs in the traditional cell, so that the transmission capacity of the common control channel is larger than that of the previous system, such as the RACH response, so the RACH response can be scheduled in the PBCH. The subframes where the SIB1 and the cell-level paging are located are used to circumvent the interference caused by the CSI-RS, but the scheduling restriction is large; the scheduling restriction may be ignored, but the CSI-RS interference may be affected, but the ePDCCH itself may also be Interference is present, and in the Rel-10 and Rel-11 versions of the system only PDSCH is subject to interference.

3) The interference of the CSI-RS for the ePDCCH scheduling in the UE-specific search space may be solved by the implementation method of the base station, so the UE-specific search space (eUSS) is configured when the UE enters the connected state or enters the connected state; For the common search space (eCSS) of the ePDCCH, there may be no CSI-RS resources configured for the UE, that is, the UE does not know the CSI-RS configuration pattern in the current cell, so in addition to the scheduling restrictions mentioned above, the CSI-RS band The incoming interference cannot be solved by the implementation method of the base station.

In summary, after the CSI-RS related problem is introduced in the common search space (eCSS) of the ePDCCH, the downlink control channel itself is interfered due to the scheduling restriction. In addition to the scheduling limitation, the interference cannot be implemented by the base station. The solution to the problem, etc., caused this problem to be more serious than the problems in the previous Rel-10 and Rel-11 versions of the system.

Therefore, the embodiment of the present invention proposes a method for resolving how to transmit CSI-RS on the NCT to reduce interference, especially the resource mapping problem of the CSI-RS in the eCSS region. Among them, for convenience of description, the CSI-RS can be divided into a common CSI-RS and a dedicated CSI-RS for different purposes. The dedicated CSI-RS is the same as the CSI-RS in the prior art, that is, the CSI-RS configured in the existing system by using the dedicated RRC signaling to the UE, for the UE to perform channel and interference measurement, and the UE When the dedicated channel is received, the dedicated CSI-RS is bypassed, that is, the rate matching is performed on the dedicated CSI-RS. The dedicated channel may be a PDSCH carrying UE-specific downlink data and a UE-specific PDCCH or EPDCCH. The public CSI-RS is defined in the embodiment of the present invention, and specifically refers to the UE receiving the public letter. The CSI-RS that needs to be bypassed, the common channel may include a physical broadcast channel, and an enhanced physical hybrid automatic repeat indication indicator (EPHICH, Enhanced Physical Hybrid Automatic Repeat Request Indicator) that is shared by the common EPDCCH in the eCSS. Channel), at least one of information such as the PDSCH scheduled by the common EPDCCH. Here, other reference signals similar to CSI-RS can be handled as such.

The bypass mentioned in the embodiment of the present invention skips the public or private CSI-RS resource when mapping the encoded information to the physical resource for the base station side sending operation; for the UE side receiving operation, the foregoing physical When the above information sent on the resource is demapped, the above public or private CSI-RS resources are skipped.

The dedicated CSI-RS includes non-zero power CSI-RS and zero power CSI-RS. Where, non-zero power

CSI-RS is generally used to measure channels. There are two methods for using the zero-power CSI-RS. One method is that the resource unit set of the non-zero-power CSI-RS transmitted by the cell 1 can be configured with a zero-power CSI-RS for the cell 2, so that the cell 1 service is guaranteed. The UE uses the non-zero power CSI-RS to measure the accuracy of the channel; another method of use is to measure the interference, and this zero-power CSI-RS can be called the interference measurement resource.

In addition to the introduction of eCSS, the expansion of CSI-RS resources can also be considered on the NCT. In the existing LTE system, the subframes sent by the CSI-RS are restricted. For example, the CSI-RS may not be transmitted on the above-mentioned subframes for transmitting SIB1 and paging, and if the synchronization signal or The subframe sent by the PBCH conflicts with the CSI-RS, and the CSI-RS cannot be sent. In the future, the evolution of the system will depend on the NCT, and the CRS on the NCT will be reduced or even canceled. At least the CSI measurement depends only on the CSI-RS, while other CRS functions, such as Radio Resource Management (RRM) measurements, Synchronization, etc. may also be extended to be solved by using CSI-RS. Therefore, CSI-RS will play an increasingly important role in the future system evolution of LTE, and the CSI-RS resources in the current system are limited. The solution of the embodiment of the present invention can also extend the CSI-RS resource.

FIG. 2 is a schematic flow chart of a method 20 for receiving information according to an embodiment of the present invention, including the following valleys.

S21. The UE acquires first configuration information, where the first configuration information is used to indicate a first resource element set for transmitting a common CSI-RS.

The first resource unit set may include one or more resource units.

S22. The UE determines, according to the first configuration information, a first resource that transmits a common channel, where the first resource includes a first resource unit set. S23. The UE receives the common channel by bypassing the first resource unit set on the first resource.

The first resource includes multiple resource units; the UE bypasses the first resource unit set to receive the common channel on the first resource. Specifically, the UE is included in the first resource. The common channel is received on other resource units than the first resource unit.

In addition, the receiving, by the UE, the common channel on other resource units except the first resource unit included in the first resource means: the UE may be in all or part of the other resource unit. Receiving the common channel.

In the embodiment of the present invention, the first resource is determined by the UE, and the first resource is determined for the common channel, and the first resource includes the first resource unit set of the common CSI-RS, and the first resource unit is bypassed by the first resource unit. When the common channel is received on the remaining resource units, the interference of the common CSI-RS to the common channel can be avoided, and the CSI-RS resource can be extended by the first configuration information of the common CSI-RS.

Optionally, as a different embodiment, the UE acquires the first configuration information that is pre-configured; or the UE acquires the first configuration information by using a synchronization signal and/or a broadcast channel; or the UE is configured according to a frame number, a subframe number, or The slot number is used to obtain the first configuration information, where the frame number, the subframe number, or the slot number has an association relationship with the first configuration information.

Optionally, as a different embodiment, the common channel includes a first control channel and/or a first data channel, where the first control channel is used to schedule system information blocks, paging information, random access response information, and At least one of group power control information, the first data channel being configured to carry at least one of a system information block, paging information, and random access response information.

Optionally, as a different embodiment, the UE acquires second configuration information, where the second configuration information is used to indicate a second resource unit set for transmitting a dedicated CSI-RS; and the UE determines to transmit according to the second configuration information. a second resource of the dedicated channel, the second resource includes the second resource unit set; and the UE receives the dedicated channel by bypassing the second resource unit set on the second resource. The second resource unit set may include one or more resource units. The second resource includes multiple resource units; the UE bypasses the second resource unit set to receive the common channel on the second resource. Specifically, the UE is included in the first resource. Receiving the common channel on other resource units except the first resource unit. In addition, the UE receives the other resource unit except the first resource unit included in the first resource. The common channel means that the UE can receive the common channel on all or part of the other resource units. Optionally, as a different embodiment, the first resource includes the second resource unit set; and/or the second resource includes the first resource unit set.

Optionally, as a different embodiment, if the first resource unit set overlaps or partially overlaps with the second resource unit set, the UE utilizes the first resource element and the first resource The dedicated CSI-RS transmitted on the resource unit on which the unit set overlaps is measured; or if the first resource unit set partially overlaps or does not overlap with the second resource unit set, and the first resource includes the second a resource unit set, where the UE does not utilize a dedicated CSI-RS transmitted on a resource unit that does not overlap with the first resource unit set in the second resource unit set; or if the first resource unit set And the second resource unit set partially overlaps or does not overlap, and the first resource includes the second resource unit set, and the UE utilizes the second resource unit set and the first resource unit set Zero power dedicated CSI-RS transmitted on non-overlapping resource units for measurement; or if the first resource unit set and the second resource unit set part If the first resource includes the second resource unit set, the UE does not receive on the resource unit that does not overlap the first resource unit set in the second resource unit set. Describe the dedicated CSI-RS.

The overlapping of the second resource unit set and the first resource unit set means: part or all resource units included in the first resource unit set and all resource units included in the second resource unit set the same. The overlapping of the second resource unit set and the first resource unit set partially means: the partial resource unit included in the first resource unit set is the same as the partial resource unit included in the second resource unit set.

Optionally, if the candidate location of the multiple common channels is included in the first resource, the candidate location of the UE may be configured, for example, a CSI-RS based CSI measurement is performed on the first candidate location; The channel is scheduled to other candidate locations, for example, assumed to be at the second candidate location.

Optionally, for a CSI-RS that overlaps with the first resource, if the subframe set occupied by the CSI-RS is the first set, the base station may configure the UE to perform CSI based on a part of the subframes in the first set. - CSI measurement of the RS; At the same time, the base station can schedule the common channel to other subframes in the first set by its own implementation, so as to avoid affecting the CSI-RS measurement. The above configuration method can be configured through RRC dedicated signaling.

Optionally, as a different embodiment, the UE uses the common CSI-RS in the first subframe set as a synchronization and/or radio resource management (RRM) measurement, where the second subframe set includes One Subframes other than the subframe set.

Optionally, as a different embodiment, a scrambling manner of the common CSI-RS in the first subframe set is determined by a physical cell identifier; and the common CSI-RS in the second subframe set is added. The 4 mode is determined by the virtual d and the zone identifier.

Optionally, as a different embodiment, the first subframe set is one of the following set: a subframe set that sends the CRS and/or a subframe set that sends the synchronization signal.

Optionally, as a different embodiment, the first resource or the second resource is one of the following: at least one PRB, at least one PRB pair, at least one control channel unit, and at least one resource unit group.

FIG. 3 is a schematic flow chart of a method 30 for transmitting information according to an embodiment of the present invention, including the following valleys.

S31. The base station determines first configuration information, where the first configuration information is used to indicate a first resource element set for transmitting a common CSI-RS.

The first resource unit set may include one or more resource units.

S32. The base station determines, according to the first configuration information, a first resource that transmits a common channel, where the first resource includes the first resource unit set.

S33. The base station sends the common channel by bypassing the first resource unit set on the first resource. The first resource includes a plurality of resource units, and the base station sends the common channel by bypassing the first resource unit set on the first resource. Specifically, the base station includes the first resource. The common channel is transmitted on other resource units than the first resource unit.

In addition, the sending, by the base station, the common channel on other resource units except the first resource unit included in the first resource, the: the base station may be in all or part of the other resource unit. Sending the common channel.

In the embodiment of the present invention, the first configuration information is determined by the base station, and the first resource is determined for the common channel, and the first resource includes the first resource unit set of the common CSI-RS, and the first resource unit is bypassed by the first resource unit. When the common channel is sent on the remaining resource units, the interference of the common CSI-RS to the common channel can be avoided, and the CSI-RS resource can be extended by the first configuration information of the common CSI-RS.

Optionally, as a different embodiment, the base station sends the first configuration information to the UE by using a synchronization signal and/or a broadcast channel; or the base station indicates the first to the UE by using a frame number, a subframe number, or a slot number. a configuration information, where the frame number, subframe number, or slot number has the first configuration information connection relation.

Optionally, as a different embodiment, the common channel includes a first control channel and/or a first data channel, where the first control channel is used to schedule system information blocks, paging information, random access response information, and group power. At least one of the control information, the first data channel is configured to carry at least one of a system information block, paging information, and random access response information.

Optionally, as a different embodiment, the base station determines second configuration information, where the second configuration information is used to indicate a second resource unit set for transmitting the dedicated CSI-RS; and the base station determines the transmission dedicated channel according to the second configuration information. The second resource, the second resource includes the second resource unit set; the base station sends the dedicated channel by bypassing the second resource unit set on the second resource.

Optionally, as a different embodiment, the first resource includes the second resource unit set; and/or the second resource includes the first resource unit set.

Optionally, as a different embodiment, if the first resource unit set overlaps or partially overlaps with the second resource unit set, the second resource unit set overlaps with the first resource unit set. A dedicated CSI-RS transmitted on the resource unit is used for measurement by the UE; or if the first resource element set partially overlaps or does not overlap with the second resource element set, and the first resource includes the second a set of resource units, where the dedicated CSI-RS transmitted on the resource unit that does not overlap the first resource unit set in the second resource unit set is used to bypass when the UE performs measurement; or if the first resource And the second resource unit set partially overlaps or does not overlap, and the first resource includes the second resource unit set, and the second resource unit set does not overlap with the first resource unit set. Zero-power dedicated CSI-RS transmitted on the resource unit for measurement by the UE; or if the first resource unit set and the second resource unit set part If the first resource includes the second resource unit set, the resource unit in the second resource unit set that does not overlap the first resource unit set is used to receive the dedicated by the UE. When CSI-RS is bypassed.

Optionally, as a different embodiment, the common CSI-RS in the first subframe set is used. The synchronization and/or radio resource management measurements are performed by the UE, and the second set of subframes includes subframes other than the first set of subframes.

Optionally, as a different embodiment, a scrambling manner of the common CSI-RS in the first subframe set is determined by a physical cell identifier; the common CSI-RS in the second subframe set The scrambling method is determined by the virtual cell identity.

Optionally, as a different embodiment, the first subframe set is a set of: a subframe set that sends a CRS and/or a subframe set that sends a synchronization signal.

Next, the method of the embodiment of the present invention is further illustrated by the interaction between the base station and the UE. 4 is a schematic diagram of information interaction in an embodiment of the present invention.

A common search space (eCSS) of the ePDCCH is introduced in the embodiment of the present invention. For convenience of explanation, the CSI-RS in the prior art is referred to as a dedicated CSI-RS. In addition, another CSI-RS, also known as the public CSI-RS, is defined. The first configuration information is used to indicate a first resource element set for transmitting the common CSI-RS.

FIG. 5 is a schematic diagram of a CSI-RS resource pattern on a PRB pair in the prior art. Specifically, in the current LTE system, there are multiple CSI-RS resource patterns. Figure 5 shows the CSI-RS in an eight-antenna configuration. The numbers in Figure 5 represent the labels for each eight-antenna configuration. Other antenna configurations are not excluded. The first resource unit set of the common CSI-RS in the embodiment of the present invention is identified by 51, and may be configured in a certain eight-antenna configuration, such as a resource unit set corresponding to a CSI-RS with a label of 0, and other current configurations are also Do not rule out. For convenience of explanation, the resource unit 52 of the CRS and the resource unit 53 of the UERS are also identified in Fig. 5 with different fillings. In addition, the first configuration information may further include other information, such as a CSI-RS period, a subframe position, a PRB position, a zero-power CSI-RS configuration, and a non-zero power CSI-RS configuration, and the like.

S410. The UE acquires first configuration information, where the first configuration information is used to indicate a first resource element set for transmitting a common CSI-RS.

The first set of resource elements may contain one or more resource elements.

In an embodiment, the first configuration information of the common CSI-RS is pre-configured, and the pre-configuration may be pre-defined by a standard. In this way, the base station and the UE can know the first configuration information in advance without signaling interaction. For example, the eight-antenna configuration CSI-RS with the number 0 in Figure 5 The resource unit set is the first resource unit set, and the configuration of other antenna ports is similar to the configuration of other labels, and is not excluded. In addition, the frequency domain width of the common CSI-RS, that is, the occupied PRB pair, may be full-band, that is, occupy all PRB pairs on the current carrier; or may occupy part of the bandwidth, such as 6 PRBs of the current carrier center position. Inward, and so on. The subframe occupied by the common CSI-RS may be all subframes, or all subframes that the UE needs to detect the common channel; or may be partial subframes, for example, the common CSI-RS has a certain period, for example, 5 subframes. For the cycle, and so on.

In another embodiment, the UE acquires first configuration information of the common CSI-RS through a synchronization signal and/or a broadcast channel. Specifically, the cell identifier carried in the synchronization signal and/or the bit or scrambling code in the physical broadcast channel may be used to indicate that the UE needs to read the synchronization signal, obtain the cell identifier therein, and/or read into the physical broadcast channel. The bit or scrambling code is used to obtain the above configuration information, and other broadcast channels such as SIB indications are not excluded. Taking the bit indication of the physical broadcast channel as an example, or taking the eight-antenna configuration in FIG. 5 as an example, it can be seen that there are five eight-antenna CSI-RS configurations, and then three bits in the physical broadcast channel can be used to specifically indicate Which eight antennas are configured as the first resource unit set of the common CSI-RS, and other antenna configurations are not excluded; or, the cell identifier indication is taken as an example, for example, the five eight-antenna CSI-RS configurations may be performed by using the physical cell identifier. The modulo operation, for example, the physical cell identifier is 11, and the result of ll mod 5 is 1, then the eight-antenna CSI-RS configured as 1 can be obtained as the first resource unit set of the common CSI-RS, and of course other similar mathematical operations It is not excluded; or, the broadcast channel and the synchronization signal may be jointly indicated, and the specific method is as described above, and will not be described again.

In another embodiment, the set of resource elements of the common CSI-RS may also be associated with a frame number, a subframe number or a slot number, and the method may also be indicated in conjunction with the synchronization signal and/or broadcast channel described above. Specifically, the CSI-RS configuration of the above five eight antennas in FIG. 5 and the subframe number association are taken as an example, the subframe numbers 0 and 1 may correspond to the CSI-RS configuration 0, and the subframe numbers 2 and 3 may correspond to the CSI. -RS configuration 1, and so on, of course, other associated methods are not excluded. The beneficial effects of the embodiments of the present invention are that the efficiency of randomization can be achieved. For example, for a partial subframe, the common CSI-RS may be the same as the CSI-RS of a part of the UE, and in other subframes, the common CSI-RS may follow another The CSI-RSs of some UEs are the same. In addition, CSI-RS configuration randomization and interference coordination between different cells can also be implemented.

Optionally, as an embodiment, the foregoing common CSI-RS is bypassed during transmission and reception of a common channel, thereby avoiding interference. In addition, the configuration information of the specific CSI-RS of the specific UE may be carried by the first resource unit of the common CSI-RS. Specifically, public CSI-RS can be used Some or all of the CSI-RSs in the source are configured as dedicated UEs or dedicated CSI-RSs of certain UEs, which need to receive further indications from the base station, such as RRC-specific signaling in the prior art to receive dedicated CSIs. -RS configuration information. This makes efficient use of resources.

The common channel may include a first control channel and/or a first data channel, where the first control channel is used to schedule at least one of a system information block, paging information, random access response information, and group power control information. The first data channel is configured to carry at least one of a system information block, paging information, and random access response information. The first control channel may be a PDCCH or an ePDCCH, and the first data channel may be a Physical Downlink Shared Channel (PDSCH) or the like. The common channel may be sent to multiple UEs, that is, a control or data channel that multiple UEs need to receive. The multiple UEs may include not only the RRC connected UE but also the RRC idle state UE and the initial connection. UEs that have entered the RRC connected state. In particular, the UE that does not enter the connected state also needs to read the common channel, such as the system information block SIB, and the UEs do not acquire the RRC signaling at this time, that is, the CSI-RS configuration of the RRC signaling configuration cannot be obtained, so the above public The CSI-RS configuration can only be predefined or broadcast channel notification.

The first resource may be within a common search space, which may be the ePDCCH's Common Search Space (eCSS). For example, there are multiple candidate ePDCCH resources in the common search space. For example, according to the definition in the common search space of the PDCCH, there are four candidate resources for the aggregation level of four Control Channel Elements (CCEs). For the aggregation level of 8, there are two candidate resources, which can be used in the ePDCCH mechanism, or other aggregation levels and corresponding candidate resource partitioning methods can be used for the ePDCCH, but the methods are similar, and Do not make any restrictions. In this way, the first resource is a candidate resource of the ePDCCH in the public search space of the ePDCCH. Alternatively, the first resource may also be a resource for the UE to detect a physical broadcast channel, or a resource of another broadcast channel.

S415. The UE determines, according to the first configuration information, a first resource that transmits a common channel, where the first resource includes the first resource unit set.

Correspondingly, the base station side performs the following.

S420. The base station determines first configuration information, where the first configuration information is used to indicate a first resource unit set for transmitting a common CSI-RS.

Optionally, as a different embodiment, the base station acquires configuration information of the pre-configured common CSI-RS; and the base station determines common CSI-RS configuration information by using a configuration of a dedicated CSI-RS resource of a UE of the local cell. For example, a dedicated CSI-RS with non-zero power can be preferentially configured in the public. In the CSI-RS resources, the base station may also consider the CSI-RS configuration of the neighboring cell, such as interference coordination, to avoid CSI-RS resources between the base stations.

Optionally, as a different embodiment, the base station sends the configuration information of the common CSI-RS to the UE by using a synchronization signal and/or a broadcast channel; or the configuration information and the frame number of the common CSI-RS by the base station, The configuration information of the common CSI-RS is transmitted to the UE in a manner in which the subframe number or the slot number is associated.

S425. The base station determines, according to the first configuration information, a first resource that transmits a common channel, where the first resource includes the first resource unit set.

S430. The base station sends the common channel by bypassing the first resource unit set on the first resource.

S435. The UE receives the common channel by bypassing the first resource unit set on the first resource.

That is, the UE will assume that the information of the common channel is not transmitted at the first resource unit set of the common CSI-RS in the first resource of the common channel, that is, when the UE detects the common channel on the first resource, the UE will The first resource unit set of the above common CSI-RS is opened. In this way, it can be ensured that the CSI-RS that may be sent on the first resource element set of the common CSI-RS does not interfere with the reception of the common channel, improves the receiving performance of the common channel, and ensures the first resource of the common CSI-RS. CSI-RS measurements on a set of cells are not affected. Specifically, the UEs that are not in the connected state also need to receive the common channel, and the UEs are not aware of the CSI-RS configuration in the system when the UE is not in the connected state, that is, there may be CSI-RSs of other UEs on the first resource. At this time, if the above-mentioned common CSI-RS is not introduced, the UEs that are not in the connected state will receive the CSI-RS actually transmitted in the system as a common channel when receiving the common channel, and the CSI-RS interference will be brought. The reception performance of the common channel is degraded. By configuring a common CSI-RS configuration indicated by a pre-configured or broadcast channel, the UEs that are not in the connected state can obtain the common CSI-RS configuration, and the base station will use the CSI in the common CSI-RS configuration. The RS is configured to be in the connected state of the UE in the current cell. If the current cell does not need to exclude the CSI-RS from the connected UE, the CSI-RS in the common CSI-RS configuration may not be configured to the connected UE. In any case, the UE is Receiving a common channel bypasses the set of resource elements under this common CSI-RS configuration. In this way, when the base station configures the CSI-RS in the common CSI-RS configuration to the connected UE in the current cell, all the UEs receiving the common channel will not receive the CSI-RS in the common CSI-RS configuration. Interference, and the connected UE can normally use the CSI-RS in this common CSI-RS configuration. Do CSI measurements.

S440. The UE acquires second configuration information, where the second configuration information is used to indicate a second resource unit set for transmitting the dedicated CSI-RS.

S445. The UE determines, according to the second configuration information, a second resource that is a dedicated channel, where the second resource includes the second resource unit set.

The content of the second configuration information of the dedicated CSI-RS, such as the resource unit and the antenna port, is similar to the first configuration information, and is not described here. The UE is configured to obtain the configuration of the dedicated CSI-RS through RRC dedicated signaling, and therefore the UE is an RRC connected state UE. And the resource unit sets of the common CSI-RS and the dedicated CSI-RS may be the same or different, that is, independently configured. Optionally, the first resource includes the second resource unit set and/or the second resource includes the first resource unit set.

Correspondingly, the base station side performs the following.

S450. The base station determines second configuration information, where the second configuration information is used to indicate a second resource unit set of the transmission specific CSI-RS.

S455. The base station determines, according to the second configuration information, a second resource that transmits a dedicated channel, where the second resource includes the second resource unit set.

S460. The base station sends the dedicated channel by bypassing the second resource unit set on the second resource.

S465. The UE receives the dedicated channel by bypassing the second resource unit set on the second resource.

The connected UE may also receive a dedicated channel, such as a C-RNTI scrambled PDCCH or ePDCCH, and a dedicated PDCCH/ePDCCH scheduled downlink data channel. Taking the dedicated ePDCCH as an example, the ePDCCH is generally located in the UE-specific search space of the UE. In addition, some ePDCCHs of a specific format for back-off scheduling, such as ePDCCH of format 0 and format 1A, may be located at the UE specific of the UE. In the search space and/or the common search space, the second resource may be a candidate resource of the ePDCCH in the UE-specific search space and/or the common search space, and the meaning of the candidate resource is the same as that of the first resource, and is no longer Narration.

The UE receives the dedicated channel by bypassing the second resource unit set on the second resource, that is, when the UE receives the dedicated channel, the CSI-RS only needs to bypass the second configuration configured to the UE by using RRC dedicated signaling. The resource unit set does not need to bypass the first resource unit set, because the first resource unit set is only used when the UE receives the common channel. FIG. 6A is a schematic diagram of a hypothesis of a CSI-RS when receiving a common channel according to an embodiment of the present invention. In an embodiment, as shown in FIG. 6A, the first resource 61 may include the second resource unit set 62. Obviously, the first resource 61 and the second resource 63 are completely or partially overlapped, because both include the first Two resource unit sets 62. At this time, the UE does not use the second resource unit set 62 as the reference signal that needs to be bypassed when receiving the common channel on the first resource 61, that is, the foregoing second resource unit set 62 receives The common channel is inactive, and the first set of resource elements 64 is bypassed when the common channel is detected. This is a uniform behavior for connected state UEs and non-connected state UEs. For a connected UE, if the second resource unit set 62 is not included by the first resource unit set 64 and the first resource 61 includes the second resource unit set 62, the UE may not utilize the second resource unit set. The CSI-RS is configured to perform CSI measurement on the CSI-RS, because the base station may not send the CSI-RS of the UE on the second resource unit set 62 when transmitting the common channel; or the UE only uses the foregoing The two resource unit sets 62 are configured to perform CSI measurement for their own zero-power CSI-RS, because the base station may transmit zero-power CSI-RS on the above-mentioned second resource unit set 62, so the zero-power CSI-RS is for common channel reception performance. The effect is small, zero power means that the transmit power of the CSI-RS position is zero. Or, if the first resource unit set 64 does not include the second resource unit set 62, and the first resource 61 includes the second resource unit set 62, the UE does not expect to be in the second The dedicated CSI-RS or non-zero power dedicated CSI-RS is received on resource element set 62. Alternatively, when the second resource unit set 62 is included by the first resource unit set 64, the UE may perform CSI measurement by using non-zero power and zero-power CSI-RS on the second resource unit set 62, because at this time, in the second The CSI-RS of the UE transmitted on the resource unit set 62 does not cause interference to other UEs and the UE receiving the common channel.

6B is a schematic diagram of an assumption of a CSI-RS when receiving a dedicated channel according to an embodiment of the present invention. In another embodiment, as shown in FIG. 6B, the second resource 63 may include the first resource unit set 64. Obviously, the first resource 61 and the second resource 63 are completely or partially overlapped because both are included. The first resource unit set 64. In particular, the first resource 61 and the second resource 63 may be the same resource, for example, for receiving the ePDCCH of the format 1 A in the common search space, the ePDCCH of the format 1A may schedule both the common channel and the dedicated channel. At this time, the UE does not bypass the first resource unit set to receive the dedicated channel on the second resource, that is, the first resource unit set 64 does not function for receiving a dedicated channel. Since the first resource unit set 64 is dedicated to receiving a common channel, the UE does not need to pay attention to receiving the dedicated channel. It can improve the resource utilization efficiency of the system. Optionally, for the same downlink control information (DCI, resource location, where the DCI format includes, for example, DCI format 0 and/or DCI format 1A. The following takes DCI format 1A as an example, if the ePDCCH of the DCI format 1A passes the common CRC interference. If the code is scrambled, such as the RNTI (Radio Network Temporary Identity) or the paging RNTI, then it is assumed that the common CSI-RS is bypassed when performing rate matching or demapping; if the ePDCCH of the DCI format 1A passes The dedicated CRC scrambling code, such as cell RNTI (C-RNTI, Cell-RNTI), is scrambled, so it is necessary to bypass the dedicated CSI-RS when performing rate matching or demapping.

In the current LTE system, the UE uses CRS for synchronization and RRM measurement, wherein synchronization mainly refers to time-frequency fine synchronization, especially frequency fine synchronization, and RRM measurement includes reference signal received power (RSRP, Reference Signal Receiving Power) and reference signal reception quality ( RSRQ, Reference Signal Receiving Quality) measurement. The following is an example of synchronization. For the new carrier NCT, the time domain density of the CRS will reduce or even cancel the CRS transmission. For example, the CRS is sent once in 5ms, so that the tracking accuracy of the time-frequency fine synchronization on the carrier of the small bandwidth is particularly serious, such as 1.4HMZ. And 3MHz carrier, due to the reduced CRS resources available. Therefore, it is conceivable to use CSI-RS and CRS to achieve synchronization, or to rely solely on the CSI-RS synchronization mechanism. The configuration of the CSI-RS in the current LTE system is notified by the RRC signaling, that is, only the UE in the connected state can obtain the CSI-RS configuration, but the time-frequency fine synchronization is also important for the UE that is not in the RRC connected state, for example, Receiving the above common channel.

The time-frequency fine synchronization may be performed by using some or all of the CSI-RSs on the first resource unit set of the above common CSI-RS. A subframe set in which a CRS is transmitted, a subframe set in which a synchronization signal is transmitted, or the like may be used as the first subframe set. For example, if the transmission period of the CRS is 5 ms and the transmission subframe is the subframe 0 and the subframe 5, then some or all of the CSI-RSs on the first resource unit set may be taken on the subframe 0 and the subframe 5, respectively. For time-frequency fine synchronization, this subframe 0 and subframe 5 may belong to the first subframe set, and the current other subframes constitute the first subframe set and are not excluded. The UE that is not in the connected state also needs to use the CSI-RS on the first subframe set for time-frequency fine synchronization, because on the base station side, the scrambling mode of the CSI-RS can be determined by the first cell identifier, the first A cell identifier may be a physical cell identifier of the current carrier, and is carried by the synchronization signal. Correspondingly, on the UE side, the descrambling mode of the CSI-RS may be determined by the first cell identifier. For a subframe other than the first subframe set, the second subframe set may be formed. On the base station side, the scrambling manner of the CSI-RS on the first resource unit set in the second subframe set may be performed by the second cell. Identification decision, the second The cell identifier may be configured to a connected UE by using RRC signaling, and the second cell identifier may also be referred to as a virtual cell identifier. Correspondingly, on the UE side, the descrambling manner of the CSI-RS on the first resource element set in the second subframe set may be determined by the second cell identifier.

In the embodiment shown in Figs. 2 to 6A and 6B, a method of transmitting or receiving CSI-RS is explained. For convenience of explanation, the CSI-RS is divided into two types: a public CSI-RS and a dedicated CSI-RS, which are applied to a common channel and a dedicated channel, respectively. Optionally, the embodiment of the present invention provides another method, which is also used for sending or receiving CSI-RS. In the method, there is only one CSI-RS, which is equivalent to the dedicated CSI-RS in the former method. In the embodiment shown in Figs. 7 to 9, the method of transmitting or receiving the CSI-RS is explained for the dedicated CSI-RS in the second method.

FIG. 7 is a schematic flow chart of a method 70 for transmitting information according to an embodiment of the present invention, including the following valleys.

S71. The base station determines a first resource of the first common channel, where the first common channel includes at least one of a physical broadcast channel, a control channel for scheduling a system information block, and a control channel for scheduling paging information.

S72. The base station maps the first common channel to the first resource by bypassing resources of the first reference signal, where the first reference signal includes a cell-specific reference signal CRS and/or a synchronization signal, and does not include a non-zero power CSI- RS.

S73. The base station sends the first common channel on the first resource.

In the embodiment of the present invention, the first resource is determined by the base station for the common channel, and the first common channel is mapped to the first resource by bypassing the resource of the first reference signal that does not include the non-zero power CSI-RS. When the first common channel is sent on the first resource, the interference of the CSI-RS on the common channel can be minimized, and the CSI-RS resource can be extended by using the first resource.

Optionally, as a different embodiment, before the sending, by the base station, the first common channel on the first resource, the method further includes: the base station configuring a channel state information reference signal CSI-RS resource for the UE, where The CSI-RS includes a non-zero power CSI-RS and/or a zero power CSI-RS, and the first resource and the CSI-RS resource overlap.

Optionally, as a different embodiment, the first reference signal does not include a zero-power CSI-RS. Optionally, as a different embodiment, before the base station sends the first common channel on the first resource, the base station uses the zero-power CSI of an overlapping portion with the first resource. The RS punctured the first common channel.

Optionally, as a different embodiment, the base station determines the second common channel and/or the dedicated channel. And a second resource, where the second common channel includes a control channel for scheduling random access response information and/or a control channel for scheduling group power control information, where the dedicated channel includes C-RNTI or semi-persistent scheduling-C-RNTI (SPS) -C-RNTI, Semi-Persistent Scheduling-C-RNTI) a scrambled control channel or a data channel scheduled by the control channel; the base station omits the second common channel by bypassing the second reference signal Or the dedicated channel is mapped to the second resource, the second reference signal includes at least one of the CRS, the synchronization signal, and the CSI-RS; the base station sends on the second resource The second common channel and/or dedicated channel.

Optionally, as a different embodiment, the first resource or the second resource is one of: at least one PRB, at least one PRB pair, at least one control channel unit, and at least one resource unit group.

In the embodiment of the present invention, when the UE determines the first resource for the common channel, and receives the first common channel by bypassing the first reference signal that does not include the non-zero power CSI-RS, the interference of the CSI-RS on the common channel can be minimized. And through the first resource, the CSI-RS resource can be extended.

FIG. 8 is a schematic flowchart of a method 80 for receiving information according to an embodiment of the present invention, including the following content.

581. The UE determines a first resource of the first common channel, where the first common channel includes at least one of a physical broadcast channel, a control channel of a scheduling system information block, and a control channel for scheduling paging information.

582. The UE receives the first common channel by bypassing the first reference signal on the first resource, where the first reference signal includes a cell-specific reference signal CRS and/or a synchronization signal, and does not include a non-zero power CSI-RS.

Optionally, as a different embodiment, the UE acquires a configured CSI-RS resource, where the CSI-RS includes a non-zero power CSI-RS, before receiving the first common channel on the first resource. And/or a zero-power CSI-RS, the first resource and the CSI-RS resource overlap.

Optionally, as a different embodiment, the first reference signal does not include a zero-power CSI-RS. Optionally, as a different embodiment, the UE does not use the non-zero power CSI-RS that overlaps with the first resource to perform measurement; and/or the UE utilizes an overlap with the first resource. The zero-power CSI-RS is measured; and/or the UE does not expect to receive the CSI-RS or the non-zero-power CSI-RS on a resource overlapping the first resource.

Optionally, as different embodiments, the UE determines the to the second common channel and/or the dedicated channel. One less second resource, wherein the second common channel includes a control channel for scheduling random access response information and/or a control channel for scheduling group power control information, and the dedicated channel includes C-RNTI or SPS-C-RNTI plus a disturbed control channel or a data channel scheduled by the control channel; the UE receives the second common channel by bypassing a second reference signal on the second resource, where the second reference signal includes the CRS, At least one of a synchronization signal and the CSI-RS.

Optionally, as a different embodiment, when the UE receives the second common channel and/or the dedicated channel on the first resource, the UE performs measurement by using the CSI-RS that overlaps with the second resource. .

FIG. 9 is a schematic diagram of information interaction according to an embodiment of the present invention, including the following content.

S910. The base station determines a first resource of the first common channel, where the first common channel includes at least one of a physical broadcast channel, a control channel for scheduling a system information block, and a control channel for scheduling paging information.

The first common channel is a common channel with a higher priority, and specifically includes at least one of a physical broadcast channel, a control channel for scheduling a system information block, and a control channel for scheduling paging information, so the common channels may be more Transmitted by all or all UEs.

The first resource is a resource of a first common channel. The first common channel is used as a control channel for scheduling system information blocks or paging information, and other common channels are similarly processed. Specifically, the first resource may be a candidate resource in a common search space of the control channel, for example, there are four candidate resources in the common search space, and then the base station may determine one of the four candidate resources as the first common channel. The first resource may be specifically configured according to the scheduling situation of multiple cells in the cell, or may be considered to be resource-disconnected with the control channel of the neighboring cell, and so on.

S915. The base station maps the first common channel to the first resource by bypassing resources of the first reference signal, where the first reference signal includes a cell-specific reference signal CRS and/or a synchronization signal, and Includes non-zero power CSI-RS.

The base station maps the first common channel to the first resource by bypassing the first reference signal, that is, the base station maps the information of the encoded first common channel to the first in a certain order. In the resource mapping, the location of the resource unit of the first reference signal is bypassed, that is, the information of the first common channel is not mapped to the location of the resource unit. First reference channel packet The CRS and/or the synchronization signal are included, and the non-zero power CSI-RS is not included. Alternatively, the zero power CSI-RS may also be included. Since these information are known in advance for all UEs, these UEs include both RRC connected state UEs and UEs not in the RRC connected state. After the resource is mapped, the base station can transmit the first common channel.

S920: Before the base station sends the first common channel on the first resource, the method further includes: the base station configuring a channel state information reference signal CSI-RS resource for the UE, where the CSI-RS includes a non-zero power CSI-RS And/or a zero-power CSI-RS, the first resource and the CSI-RS resource overlapping.

Before the base station sends the first common channel on the first resource, the base station may further configure a CSI-RS resource for the UE, where the CSI-RS may include non-zero power CSI-RS and/or zero power CSI- The RS can be configured by sending RRC proprietary signaling. The principle of CSI-RS configuration is not limited, for example, based on the balance of reference signal overhead between subframes, coordination of neighboring cells, and so on.

The configured CSI-RS resources are generally full-band, that is, the CSI-RS is included in all PRBs of the current carrier in the frequency domain, and the period and the subframe position are included in the time domain; and the first resource belongs to the common search space. In general, the common search space is present in all subframes, or may be periodic, or may be on certain subframes, and the first resource may be temporally associated with the CSI-RS. The resources overlap. In the frequency domain, since the CSI-RS is generally full-band, the first resource in the common search space must also overlap with the CSI-RS resources. It is assumed that four PRBs are overlapped, and other overlapping cases are similarly processed. The situation with other first resources is similar.

Since the CSI-RS is a UE-specific RRC dedicated signaling configuration, only the UE in the RRC connected state can acquire the CSI-RS configuration. However, the first common channel may be broadcast, meaning that the connected UE and the UE that are not in the connected state need to receive the first common channel, and the UE that is not in the connected state does not know the other UEs on the current carrier. CSI-RS configuration, when the first resource overlaps with the CSI-RS resource, especially the non-zero power CSI-RS resource, if the first common channel and the non-zero power CSI-RS are sent together on the first resource, It is therefore unclear that the UE of the above CSI-RS configuration will receive the above-mentioned non-zero power CSI-RS as the first common channel, which will bring additional interference to the reception of the first common channel. Considering that the first common channel is generally broadcast, so it is important that the first reference signal does not include a non-zero power CSI-RS, that is, when the first common channel is mapped to the first resource, the foregoing may not be bypassed. The non-zero-power CSI-RS is the same as if the CSI-RS does not exist, or the above-mentioned non-zero-power CSI-RS is not transmitted at this time. The foregoing embodiment has the beneficial effects that the interference caused by the non-zero power CSI-RS on the first common channel is eliminated, and the receiving performance of the first common channel is guaranteed. For the problem of whether to transmit a CSI-RS when transmitting the first common channel, it is considered that the power interference of the zero-power CSI-RS for the first common channel does not exist even if the UE treats the zero-power CSI-RS as the first common channel. Reception does not cause additional interference, but the coding rate is improved, so the reception performance of the first common channel does not deteriorate seriously. Therefore, after the base station sends the first common channel on the first resource, or after the mapping step of the first common channel to the first resource, the base station may map the first common public with the zero-power CSI-RS pair. The channel is punctured, that is, the information of the first common channel is not transmitted at the position of the zero-power CSI-RS, but the above-mentioned zero-power CSI-RS is transmitted as usual. The beneficial effects of the embodiment of the present invention are that the first common channel is not interfered, and the UE does not affect the interference measurement by the zero-power CSI-RS, and does not affect the accuracy of the zero-power CSI-RS for channel measurement. .

Correspondingly, the UE performs the following.

S925. The UE determines a first resource of the first common channel, where the first common channel includes at least one of a physical broadcast channel, a control channel for scheduling a system information block, and a control channel for scheduling paging information.

S930. The base station sends the first common channel on the first resource.

S935. The UE receives the first common channel by bypassing a first reference signal on the first resource, where the first reference signal includes a cell-specific reference signal CRS and/or a synchronization signal, and does not include a non-zero power CSI- RS.

For UE based CSI-RS based measurements, there are alternative embodiments as follows.

Optionally, the UE does not use the non-zero power CSI-RS that overlaps with the first resource on the first resource to perform CSI measurement; specifically, the base station does not send the non-zero power CSI-RS when transmitting the first common channel to avoid For other UEs, such as interference of idle UEs, the UE does not perform CSI measurement with non-zero power CSI-RS overlapping with the first resource to ensure measurement performance.

Optionally, the UE may perform CSI measurement by using a zero-power CSI-RS that overlaps with the first resource on the first resource; specifically, the UE does not bring interference to the first common channel because the zero-power CSI-RS does not cause interference. CSI measurements can be made to ensure measurement performance.

Optionally, if the candidate location of the multiple common channels is included in the first resource, the candidate location of the UE may be configured, for example, a CSI-RS based CSI measurement is performed on the first candidate location; When the first common channel is scheduled, it is scheduled to other candidate locations, for example, assumed to be at the second candidate location.

Optionally, for the CSI-RS overlapping with the first resource, if the subframes occupied by the CSI-RSs The set is the first set, then the base station may configure the UE to perform CSI-RS based CSI measurement on a partial subframe in the first set; and the base station may schedule the first common channel into the first set by its own implementation. On other sub-frames, avoid affecting CSI-RS measurements. The above configuration method can be configured through RRC dedicated signaling.

Optionally, as a different embodiment, the base station may also perform the following content.

S940. The base station determines a second resource of the second common channel and/or the dedicated channel, where the second common channel includes a control channel for scheduling random access response information and/or a control channel for scheduling group power control information, where the dedicated channel The channel includes a C-RNTI or SPS-C-RNTI scrambled control channel or a data channel scheduled by the control channel.

S945. The base station maps the second common channel and/or the dedicated channel to the second resource by bypassing a second reference signal, where the second reference signal includes the CRS, the synchronization signal, and a Said at least one of CSI-RS.

Correspondingly, the UE performs the following content.

S950, the UE determines at least one second resource of the second common channel and/or the dedicated channel, where the second common channel includes a control channel for scheduling random access response information and/or a control channel for scheduling group power control information, where The dedicated channel includes a C-RNTI or SPS-C-RNTI scrambled control channel or a data channel scheduled by the control channel.

S955. The base station sends the second common channel and/or a dedicated channel on the second resource. S960. The UE receives the second common channel by bypassing a second reference signal on the second resource, where the second reference signal includes the CRS, at least one of the synchronization signal and the CSI-RS. .

In the following embodiments, how to transmit or receive a CSI-RS is illustrated for the second common channel. The second resource for the second common channel may also be a candidate resource in the common search space, as described in the above embodiment. The second common channel includes a control channel for scheduling random access response information and/or a control channel for scheduling group power control information, the former being the reply information of the random access preamble sent by the UE, and the latter being the control channel for scheduling the power control information The power control information is encoded by multiple UEs, for example, 10 UEs, and each UE uses 1 bit, then 10 bits of the 10 UEs constitute the load of the above control channel. Compared with the foregoing first common channel, the common channel has a lower priority. Specifically, if there is no random access conflict, that is, if there are no multiple UEs to send the same random access preamble, then the random access response The information is for a single UE; and the control channel for scheduling group power control information is for connected UEs, at which time the CSI-RS of these UEs It has been obtained through the respective RRC proprietary signaling. Extendedly, the second common channel may also be a downlink data channel carrying at least one of SIB, paging information and random access response information.

Based on the foregoing analysis, the base station maps the second common channel to the second resource by bypassing the second reference signal; the second reference signal includes the CRS, the synchronization signal, and the CSI- At least one of the RSs. The beneficial effects of the embodiment of the present invention are: when the base station sends the second common channel, the CSI-RS can be sent as usual, including the non-zero power CSI-RS and the zero-power CSI-RS, and the interference caused by the second common channel can pass. Resolving with a larger resource to send the second common channel, because this second common channel is generally used for a single UE, or a connected state UE, the overhead of transmitting with a larger resource is not 4 ,, and for the UE The function of measuring with CSI-RS has no effect, and the measurement performance of CSI-RS is guaranteed.

In the following embodiments, how to transmit or receive CSI-RS is described for a dedicated channel. The dedicated channel includes a C-RNTI or SPS-C-RNTI scrambled control channel or a data channel scheduled by the control channel. Taking the C-RNTI as an example, the C-RNTI is a dedicated identifier of the UE, and then the control channel or data channel scrambled by the C-RNTI of one UE is generally not received by the UE, and thus can be regarded as a dedicated channel. .

The dedicated channel is used as a dedicated control channel as an example. The dedicated data channel is similarly processed and is not limited. The second resource may be a candidate resource in a UE-specific search space, and the base station may determine a second resource in multiple candidate resources in the search space, which may be coordinated according to inter-cell or coordinated by multiple UEs in the local cell. Etc., not #文限定. At this time, the second resource in the UE-specific search space may not overlap with the first resource in the common search space, partially overlap or even completely overlap. In particular, a dedicated control channel of a specific format may also be scheduled in the common search space, such as the control channel of format 1A, and this control channel and the common channel for scheduling common information may be distinguished by different RNTI scrambling, at this time for the special format. The dedicated control channel can be understood as the second resource and the first resource can completely overlap.

Since the dedicated channel is scheduled to the RRC connected state UE, these UEs can acquire

a CSI-RS resource, then the base station maps the dedicated channel to the second resource by bypassing the second reference signal; the second reference signal includes the CRS, the synchronization signal and the CSI - at least one of RS. The beneficial effects of the embodiments of the present invention are: when the base station sends the dedicated channel, the CSI-RS can be sent as usual, including the non-zero power and the zero-power CSI-RS, and has no effect on the function of the UE to perform measurement by using the CSI-RS, and the CSI- is guaranteed. RS measurement performance.

10A and 10B are schematic block diagrams of a user equipment 1000 according to an embodiment of the present invention. User setting The standby 1000 includes a first obtaining unit 1001, a first determining unit 1002, and a receiving unit 1003. The first obtaining unit 1001 acquires first configuration information, where the first configuration information is used to indicate a first resource unit set for transmitting a common CSI-RS.

The first determining unit 1002 determines, according to the first configuration information acquired by the first acquiring unit, a first resource that transmits a common channel, where the first resource includes the first resource unit set.

The receiving unit 1003 receives the common channel by bypassing the first resource unit set on the first resource determined by the first determining unit.

The first resource unit set may include one or more resource units. The first resource includes a plurality of resource units; the UE bypasses the first resource unit set to receive the common channel on the first resource, and the specific resource is included in the first resource. Receiving the common channel on other resource units except the first resource unit. In addition, the UE receives the common channel on other resource units except the first resource unit included in the first resource. It is meant that the UE may receive the common channel on all or part of the other resource units.

In another implementation, as shown in FIG. 10B, the user equipment 1000 may further include a second obtaining unit 1004, a second determining unit 1005, a measuring unit 1006, and a descrambling unit 1007.

Optionally, as a different embodiment, the first acquiring unit 1004 specifically acquires the pre-configured first configuration information; or acquires the first configuration information by using a synchronization signal and/or a broadcast channel; or The first configuration information is obtained by using a subframe number or a slot number, where the frame number, the subframe number, or the slot number has an association relationship with the first configuration information.

Optionally, as a different embodiment, the common channel used by the sending unit 1003 includes a first control channel and/or a first data channel, where the first control channel is used to schedule system information blocks, paging information, and random. And at least one of access response information and group power control information, where the first data channel is used to carry at least one of a system information block, paging information, and random access response information.

Optionally, as a different embodiment, the second acquiring unit 1004 acquires second configuration information, where the second configuration information is used to indicate a second resource unit set for transmitting a dedicated CSI-RS; and the second determining unit 1005 is configured according to the second The second configuration information acquired by the second obtaining unit determines that the transmission is dedicated a second resource of the channel, the second resource includes the second resource unit set; the receiving unit

1003 also receives the dedicated channel by bypassing the second set of resource elements on the second resource.

Optionally, as a different embodiment, the measuring unit 1006 is further configured to: if the first resource unit set overlaps or partially overlaps with the second resource unit set, the measuring unit is configured to utilize the second resource Dedicating a dedicated CSI-RS transmitted on a resource unit overlapping the first resource unit set in the unit set; or if the first resource unit set partially overlaps or does not overlap with the second resource unit set, and The first resource includes the second resource unit set, and the measurement unit is configured to not use a dedicated CSI-RS sent on a resource unit that does not overlap with the first resource unit set in the second resource unit set. Performing measurement; or if the first resource unit set partially overlaps or does not overlap with the second resource unit set, and the first resource includes the second resource unit set, the measurement unit is used to utilize the Measuring zero-power dedicated CSI-RS transmitted on the resource unit that does not overlap the first resource unit set in the second resource unit set; or If the first resource unit set partially overlaps or does not overlap with the second resource unit set, and the first resource includes the second resource unit set, the receiving unit is further configured to not be in the second The dedicated CSI-RS is received on a resource unit in the set of resource units that does not overlap the first resource unit set.

Optionally, as a different embodiment, the measuring unit 1006 further performs synchronization and/or radio resource management measurement by using the common CSI-RS in the first subframe set, where the second subframe set includes the first Subframes other than the subframe set.

Optionally, as a different embodiment, the descrambling unit 1007 further includes: determining, by the physical cell identifier, a descrambling manner of the common CSI-RS in the first subframe set; determining by using a virtual cell identifier a descrambling manner of the common CSI-RS in the second subframe set.

Optionally, as a different embodiment, the first subframe set used by the measurement unit is a set of: a subframe set that sends a CRS and/or a subframe set that sends a synchronization signal. Optionally, as a different embodiment, the first resource used by the first determining unit or the second resource used by the second determining unit is one of the following: at least one PRB, at least one PRB And, at least one control channel unit and at least one resource unit group.

A common search space (eCSS) of the ePDCCH is introduced in the embodiment of the present invention. For convenience of explanation, the CSI-RS in the prior art is referred to as a dedicated CSI-RS. In addition, another CSI-RS is defined, that is, a common CSI-RS. Referring to the embodiment shown in FIG. 2, FIG. 4, FIG. 5, and FIG. 6A or FIG. 6B, the user equipment 1000 of the embodiment of the present invention implements the method. 20 or method 400.

Corresponding to the user equipment 1000, FIG. 11A and FIG. 11B are schematic block diagrams of a base station 1100 according to an embodiment of the present invention. The base station 1100 includes: a first determining unit 1101, a second determining unit 1102, and a transmitting unit 1103.

The first determining unit 1101 determines first configuration information, where the first configuration information is used to indicate a first resource unit set for transmitting a common CSI-RS;

The second determining unit 1102 determines, according to the first configuration information determined by the first determining unit, a first resource that transmits a common channel, where the first resource includes the first resource unit set;

The transmitting unit 1103 transmits the common channel by bypassing the first resource unit set on the first resource determined by the second determining unit.

The first resource unit set may include one or more resource units. The first resource includes a plurality of resource units; the base station sends the common channel by bypassing the first resource unit set on the first resource. Specifically, the base station includes the first resource. Transmitting the common channel on the other resource unit except the first resource unit. In addition, the base station sends the resource element on the other resource unit except the first resource unit included in the first resource. The common channel means that the base station can transmit the common channel on all or part of the other resource units.

Optionally, as another implementation manner, as shown in FIG. 11B, the base station 1100 further includes a third determining unit 1104, a fourth determining unit 1105, and a scrambling unit 1106.

Optionally, as a different embodiment, the sending unit 1103 passes the synchronization signal and/or the broadcast signal. Transmitting the first configuration information to the UE; or indicating the first configuration information to the UE by using a frame number, a subframe number, or a slot number, where the frame number, a subframe number, or a slot number and the first A configuration information has an association relationship.

Optionally, as a different embodiment, the common channel used by the sending unit 1103 includes a first control channel and/or a first data channel, where the first control channel is used to schedule system information blocks, paging information, and random. And at least one of access response information and group power control information, where the first data channel is used to carry at least one of a system information block, paging information, and random access response information.

Optionally, as a different embodiment, the third determining unit 1104 and the fourth determining unit 1105 are further included: the third determining unit 1104 determines second configuration information, where the second configuration information is used to indicate a transmission-specific CSI- a second resource unit set of the RS; the fourth determining unit 1105 determines a second resource of the transport dedicated channel according to the second configuration information determined by the third determining unit, where the second resource includes the second resource unit set The sending unit 1103 further transmits the dedicated channel by bypassing the second resource unit set on the second resource.

Optionally, as a different embodiment, if the first resource unit set overlaps or partially overlaps with the second resource unit set, the sending unit 1103 is specifically in the second resource unit set and the a dedicated CSI-RS transmitted on a resource unit in which the first resource unit set overlaps is used for measurement by the UE; or if the first resource element set partially overlaps or does not overlap with the second resource element set, and the A resource includes the second resource unit set, and the sending unit 1103 specifically uses a dedicated CSI-RS sent on a resource unit that does not overlap the first resource unit set in the second resource unit set, for use by The UE bypasses when performing measurement; or if the first resource unit set partially overlaps or does not overlap with the second resource unit set, and the first resource includes the second resource unit set, the sending unit 1103, specifically, a zero-power dedicated CSI-RS sent on a resource unit that does not overlap with the first resource unit set in the second resource unit set is used by The UE performs measurement; or if the first resource element set partially overlaps or does not overlap with the second resource element set, and the first resource includes the second resource element set, the sending unit 1103 uses The resource unit in the second resource unit set that does not overlap with the first resource unit set is used to bypass when the UE receives the dedicated CSI-RS.

Optionally, as a different embodiment, the common CSI-RS in the first subframe set is used for synchronization and/or radio resource management measurement by the UE, where the second subframe set includes the first Subframes other than the subframe set.

Optionally, as a different embodiment, the scrambling unit 1106 further includes, by using the physical cell identifier, a scrambling manner of the common CSI-RS in the first subframe set; The cell identity determines a scrambling manner of the common CSI-RS in the second subframe set.

Optionally, as a different embodiment, the first resource used by the first determining unit 1101 or the second resource used by the third determining unit is one of the following: at least one PRB, at least one PRB pair, at least one control channel element and at least one resource element group.

A common search space (eCSS) of the ePDCCH is introduced in the embodiment of the present invention. For convenience of explanation, the CSI-RS in the prior art is referred to as a dedicated CSI-RS. In addition, another CSI-RS, also known as the public CSI-RS, is defined. Referring to the embodiment illustrated in Figures 3, 4, 5, 6A and 6B, base station 1100 implements method 30 or 400.

In the embodiment of the apparatus shown in Figs. 10A to 11B, how the base station transmits the CSI-RS and how the UE receives the CSI-RS is explained. For convenience of description, the CSI-RS is divided into two types: a common CSI-RS and a dedicated CSI-RS, which are respectively applied to a common channel and a dedicated channel. Optionally, the embodiment of the present invention provides another method, which is also used for sending or receiving CSI-RS. In this method, there is only one CSI-RS, which is equivalent to the dedicated CSI-RS in the former method. Next, in the embodiment of the apparatus shown in Figs. 12A to 13B, the dedicated CSI-RS in the second method is explained how the base station transmits the CSI-RS and how the UE receives the CSI-RS.

12A and 12B are schematic block diagrams of another base station 1200 according to an embodiment of the present invention. The base station 1200 includes a first determining unit 1201, a first mapping unit 1202, and a transmitting unit 1203.

The first determining unit 1201 determines a first resource of the first common channel, where the first common channel includes at least one of a physical broadcast channel, a control channel of a scheduling system information block, and a control channel for scheduling paging information;

The first mapping unit 1202 maps the first common channel to the first resource by bypassing resources of the first reference signal, where the first reference signal includes a cell-specific reference signal CRS and/or a synchronization signal, And does not include non-zero power CSI-RS;

The transmitting unit 1203 transmits the first common channel on the first resource.

In the embodiment of the present invention, the first resource is determined by the base station for the common channel, and the bypass is not included. The method of mapping the resources of the first reference signal of the zero-power CSI-RS, mapping the first common channel to the first resource, and transmitting the first common channel on the first resource, thereby minimizing the CSI-RS pair The interference of the common channel, and the CSI-RS resource can be extended by the first resource.

Optionally, as another implementation manner, as shown in FIG. 12B, the base station 1200 may further include a configuration unit 1204, a puncturing unit 1205, a second determining unit 1206, and a second mapping unit 1207.

Optionally, as a different embodiment, the configuration unit 1204 configures a channel state information reference signal CSI-RS resource for the UE, where the sending unit sends the first common channel on the first resource, where the CSI is configured. The -RS includes a non-zero power CSI-RS and/or a zero power CSI-RS, the first resource and the CSI-RS resource overlapping.

Optionally, as a different embodiment, the first reference signal used by the first mapping unit 1202 does not include a zero-power CSI-RS.

Optionally, as a different embodiment, the puncturing unit 1205 uses the zero power of the overlapping portion with the first resource before the sending unit sends the first common channel on the first resource. The CSI-RS punctured the first common channel.

Optionally, as a different embodiment, the second determining unit and the second mapping unit are further included: the second determining unit 1206 determines a second resource of the second common channel and/or the dedicated channel, where the second public The channel includes a control channel for scheduling random access response information and/or a control channel for scheduling group power control information, and the dedicated channel includes a C-RNTI or SPS-C-RNTI scrambled control channel or data scheduled by the control channel The second mapping unit 1207 maps the second common channel and/or the dedicated channel to the second resource by bypassing the second reference signal, where the second reference signal includes the CRS, At least one of the synchronization signal and the CSI-RS; the transmitting unit 1203 further transmitting the second common channel and/or a dedicated channel on the second resource.

Optionally, as a different embodiment, the first resource used by the first determining unit 1201 or the second resource used by the second determining unit is one of the following: at least one PRB, at least one PRB pair At least one control channel unit and at least one resource unit group.

A common search space (eCSS) of the ePDCCH is introduced in the embodiment of the present invention. For convenience of explanation, the CSI-RS in the prior art is referred to as a dedicated CSI-RS. Referring to the embodiment shown in Figures 7 and 9, base station 1200 implements method 70 or 900.

Corresponding to the base station 1200, FIG. 13A and FIG. 13B are schematic block diagrams of another user equipment 1300 according to an embodiment of the present invention. The user equipment 1300 includes a first determining unit 1301 and a receiving unit 1302.

The first determining unit 1301 determines a first resource of the first common channel, where the first common channel includes at least one of a physical broadcast channel, a control channel of a scheduling system information block, and a control channel for scheduling paging information.

The receiving unit 1302 receives the first common channel by bypassing the first reference signal on the first resource determined by the first determining unit, where the first reference signal includes a cell-specific reference signal CRS and/or a synchronization signal, It does not include non-zero power CSI-RS.

As shown in FIG. 13B, the user equipment 1300 further includes an obtaining unit 1303 and a measuring unit 1304.

Optionally, as a different embodiment, the acquiring unit 1303 acquires the configured CSI-RS resource, where the CSI-RS includes the non-receiving unit, before the receiving unit receives the first common channel on the first resource. The zero-power CSI-RS and/or the zero-power CSI-RS, the first resource and the CSI-RS resource overlap.

Optionally, as a different embodiment, the first reference signal used by the receiving unit 1302 does not include a zero-power CSI-RS.

Optionally, as a different embodiment, the method further includes: a measuring unit 1304: the measuring unit does not perform measurement by using the non-zero power CSI-RS of the first resource overlapping portion; and/or the measuring unit utilizes Measuring with the zero-power CSI-RS of the overlapping portion of the first resource; and/or the receiving unit 1302 not specifically receiving the CSI-RS or the non-distribution on a resource overlapping with the first resource Zero power CSI-RS.

Optionally, as a different embodiment, the method further includes a second determining unit 1305, where the second determining unit determines at least one second resource of the second common channel and/or the dedicated channel, where the second common channel includes scheduling a control channel for random access response information and/or a control channel for scheduling group power control information, the dedicated channel comprising a C-RNTI or SPS-C-RNTI scrambled control channel or a data channel scheduled by the control channel; The receiving unit 1302 further receives the second common channel by bypassing the second reference signal on the second resource, where the second reference signal includes at least the CRS, the synchronization signal, and the CSI-RS. One.

Optionally, as a different embodiment, the measuring unit 1304 further receives the first resource when the UE receives the UE. Utilizing the second common channel and/or the dedicated channel, using the portion overlapping with the second resource

The CSI-RS performs measurements.

Optionally, as a different embodiment, the first resource used by the first determining unit or the second resource used by the second determining unit is one of the following: at least one PRB, at least one PRB And, at least one control channel unit and at least one resource unit group.

A common search space (eCSS) of the ePDCCH is introduced in the embodiment of the present invention. For convenience of explanation, the CSI-RS in the prior art is referred to as a dedicated CSI-RS. Referring to the embodiment illustrated in Figures 8 and 9, user device 1100 implements method 80 or 900.

Figure 14 is a schematic block diagram of a user equipment 140 in accordance with an embodiment of the present invention. User equipment 140 includes a processor 141, a memory 142, and a receiver 143.

The method disclosed in the above embodiment of the present invention can be applied to the processor 141. Processor 141 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 141 or an instruction in the form of software. The processor 141 described above may be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware. Component. The methods, steps, and logical block diagrams disclosed in the embodiments of the present invention may be implemented or carried out. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present invention may be directly implemented as hardware processor execution completion, or may be performed by a combination of hardware and software modules in the processor. The software modules can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory 142, and the processor 141 reads the information in the memory 142 and combines its hardware to perform the steps of the above method.

The memory 142 stores the information that the processor 141 performs the following.

The processor 141 acquires first configuration information, where the first configuration information is used to indicate that the public transmission is

a first resource unit set of the CSI-RS; determining, according to the acquired first configuration information, a first resource for transmitting a common channel, where the first resource includes the first resource unit set.

The receiver 143 bypasses the first set of resource elements on the first resource determined by the processor to receive the common channel.

The first resource unit set may include one or more resource units. The first resource includes multiple resource units; the UE receives the first resource unit set on the first resource The common channel is specifically: the UE receives the common channel on other resource units except the first resource unit included in the first resource. In addition, the UE is in the first resource. Receiving the common channel on other resource units except the first resource unit included in the unit means: the UE may receive the common channel on all or part of the other resource units.

Optionally, as a different embodiment, the processor 141 specifically acquires the pre-configured first configuration information; or acquires the first configuration information by using a synchronization signal and/or a broadcast channel; or according to a frame number and a subframe number. The first configuration information is obtained by using a slot number, where the frame number, the subframe number, or the slot number has an association relationship with the first configuration information.

Optionally, as a different embodiment, the common channel used by the receiver 143 includes a first control channel and/or a first data channel, where the first control channel is used to schedule system information blocks, paging information, and random And at least one of access response information and group power control information, where the first data channel is used to carry at least one of a system information block, paging information, and random access response information.

Optionally, as a different embodiment, the processor 141 further acquires second configuration information, where the second configuration information is used to indicate a second resource unit set for transmitting the dedicated CSI-RS; and the processor is configured according to the acquired second configuration. Determining, by the information, a second resource of the transmission dedicated channel, the second resource comprising the second resource unit set; the receiver 143 further receiving the dedicated resource by bypassing the second resource unit set on the second resource channel.

Optionally, as a different embodiment, if the first resource unit set overlaps or partially overlaps with the second resource unit set, the processor 141 is further configured to utilize the second resource unit set and The dedicated CSI-RS transmitted on the resource unit in which the first resource unit set overlaps is measured; or if the first resource unit set partially overlaps or does not overlap with the second resource unit set, and the first resource Including the second resource unit set, the processor 141 is further configured to not use the resource in the second resource unit set that does not overlap with the first resource unit set. The dedicated CSI-RS transmitted on the source unit performs measurement; or if the first resource element set partially overlaps or does not overlap with the second resource element set, and the first resource includes the second resource element set, The processor 141 is further configured to perform measurement by using a zero-power dedicated CSI-RS sent on a resource unit that does not overlap the first resource unit set in the second resource unit set; or if the first The resource unit set partially overlaps or does not overlap with the second resource unit set, and the first resource includes the second resource unit set, and the receiver 143 is further configured to not be in the second resource unit set. The dedicated CSI-RS is received on a resource unit that does not overlap with the first set of resource elements.

Optionally, as a different embodiment, the processor 141 further performs synchronization and/or radio resource management measurement by using the common CSI-RS in the first subframe set, where the second subframe set includes the first Subframes other than the subframe set.

Optionally, as a different embodiment, the processor 141 further determines, by using a physical cell identifier, a descrambling manner of the common CSI-RS in the first subframe set; determining, by using a virtual cell identifier, the second subframe. The descrambling mode of the common CSI-RS in the set.

Optionally, as a different embodiment, the first subframe set used by the processor 141 is a lower set: a subframe set that sends a CRS and/or a subframe set that sends a synchronization signal.

Optionally, as a different embodiment, the first resource used by the processor 141 or the second resource used is one of: at least one PRB, at least one PRB pair, at least one control channel unit, and at least A resource unit group.

A common search space (eCSS) of the ePDCCH is introduced in the embodiment of the present invention. For convenience of explanation, the CSI-RS in the prior art is referred to as a dedicated CSI-RS. In addition, another CSI-RS, also known as the public CSI-RS, is defined. Referring to the embodiment shown in FIG. 2, FIG. 4, FIG. 5 and FIG. 6A or FIG. 6B, the user equipment 140 of the embodiment of the present invention implements the method 20 or the method 400.

Corresponding to user equipment 1000, FIG. 15 is a schematic block diagram of a base station 150 in accordance with an embodiment of the present invention. The base station 150 includes: a processor 151, a memory 152, and a transmitter 153.

The method disclosed in the foregoing embodiment of the present invention can be applied to the processor 151. The processor 151 can Can be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 151 or an instruction in a form of software. The processor 151 described above may be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware. Component. The methods, steps, and logical block diagrams disclosed in the embodiments of the present invention may be implemented or executed. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor. The software modules can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory 152. The processor 151 reads the information in the memory 152 and completes the steps of the above method in combination with its hardware.

The memory 152 stores the information that the processor 151 performs the following.

The processor 151 determines first configuration information, where the first configuration information is used to indicate a first resource unit set for transmitting a common CSI-RS; and determining, according to the determined first configuration information, a first resource for transmitting a common channel, where the first The resource includes the first set of resource elements.

The transmitter 153 transmits the common channel around the first set of resource elements on the first resource determined by the processor.

Alternatively, as a different embodiment, the transmitter 153 transmits to the synchronization signal and/or the broadcast channel. Transmitting, by the UE, the first configuration information; or indicating, by using a frame number, a subframe number, or a slot number, the first configuration information, where the frame number, a subframe number, or a slot number and the first configuration Information has an association.

Optionally, as a different embodiment, the common channel used by the transmitter 153 includes a first control channel and/or a first data channel, where the first control channel is used to schedule system information blocks, paging information, and random And at least one of access response information and group power control information, where the first data channel is used to carry at least one of a system information block, paging information, and random access response information.

Optionally, as a different embodiment, the processor 151 further determines second configuration information, where the second configuration information is used to indicate a second resource unit set that transmits the dedicated CSI-RS; and is determined according to the third determining unit. The second configuration information determines a second resource of the transmission dedicated channel, the second resource includes the second resource unit set, and the transmitter 153 further transmits the second resource unit set on the second resource The dedicated channel.

Optionally, as a different embodiment, if the first resource unit set overlaps or partially overlaps with the second resource unit set, the transmitter 153 is specifically configured in the second resource unit set a dedicated CSI-RS transmitted on a resource unit in which the first resource unit set overlaps is used for measurement by the UE; or if the first resource element set partially overlaps or does not overlap with the second resource element set, and the A resource includes the second resource unit set, and the transmitter 153 specifically uses a dedicated CSI-RS sent on a resource unit that does not overlap the first resource unit set in the second resource unit set for use by The UE bypasses when performing measurement; or if the first resource unit set partially overlaps or does not overlap with the second resource unit set, and the first resource includes the second resource unit set, the transmitter 153 specifically transmitting a zero-power dedicated CSI-RS transmitted on a resource unit that does not overlap the first resource unit set in the second resource unit set for measurement by the UE Or if the first resource unit set partially overlaps or does not overlap with the second resource unit set, and the first resource includes the second resource unit set, the second used by the transmitter 153 A resource unit in the set of resource units that does not overlap with the first resource unit set is used to bypass when the UE receives the dedicated CSI-RS.

Optionally, as a different embodiment, the common CSI-RS in the first subframe set is used for synchronization and/or radio resource management measurement by the UE, where the second subframe set includes the first sub-frame Subframes other than the frame set. Optionally, as a different embodiment, the processor 151 further determines, by using a physical cell identifier, a scrambling manner of the common CSI-RS in the first subframe set; determining, by using a virtual cell identifier, the second subframe. The scrambling manner of the common CSI-RS in the set.

Optionally, as a different embodiment, the first resource used by the processor 151 or the second resource used by the third determining unit is one of the following: at least one PRB, at least one PRB pair. At least one control channel unit and at least one resource unit group.

A common search space (eCSS) of the ePDCCH is introduced in the embodiment of the present invention. For convenience of explanation, the CSI-RS in the prior art is referred to as a dedicated CSI-RS. In addition, another CSI-RS, also known as the public CSI-RS, is defined. Referring to the embodiment illustrated in Figures 3, 4, 5, 6A and 6B, base station 150 implements method 30 or 400.

In the embodiment of the apparatus shown in Figs. 14 to 15, it is explained how the base station transmits the CSI-RS and how the UE receives the CSI-RS. For convenience of description, CSI-RS is divided into two types: a public CSI-RS and a dedicated CSI-RS, which are respectively applied to a common channel and a dedicated channel. Optionally, the embodiment of the present invention provides another method, which is also used for sending or receiving CSI-RS. In this method, there is only one CSI-RS, which is equivalent to the dedicated CSI-RS in the former method. Next, in the embodiment of the apparatus shown in FIG. 16 to FIG. 17, the dedicated CSI-RS in the second method is used to describe how the base station transmits the CSI-RS, and the UE interface: CSI-RS.

Figure 16 is a schematic block diagram of another base station 160 in accordance with an embodiment of the present invention. The base station 160 includes a processor 161, a memory 162, and a transmitter 163.

The method disclosed in the above embodiments of the present invention can be applied to the processor 161. Processor 161 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 161 or an instruction in a form of software. The processor 161 described above may be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware. Component. The methods, steps, and logical block diagrams disclosed in the embodiments of the present invention may be implemented or executed. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor. Software modules can be located in random access memory, flash memory, read-only memory, programmable Read-only memory or electrically erasable programmable memory, registers, etc. are well-established in the storage medium of the art. The storage medium is located in the memory 162. The processor 161 reads the information in the memory 162 and completes the steps of the above method in combination with its hardware.

The memory 162 stores the information that the processor 161 performs the following.

The processor 161 determines a first resource of the first common channel, where the first common channel includes at least one of a physical broadcast channel, a control channel for scheduling system information blocks, and a control channel for scheduling paging information; The first common channel is mapped onto the first resource in a manner of reference to a resource of the signal, the first reference signal comprising a cell-specific reference signal CRS and/or a synchronization signal, and does not include a non-zero power CSI-RS.

Transmitter 163 transmits the first common channel on the first resource.

Optionally, as a different embodiment, the processor 161 further configures a channel state information reference signal CSI-RS resource for the UE before the transmitter 163 sends the first common channel on the first resource. The CSI-RS includes a non-zero power CSI-RS and/or a zero power CSI-RS, and the first resource and the CSI-RS resource overlap.

Optionally, as a different embodiment, the first reference signal used by the processor 161 does not include a zero power CSI-RS.

Optionally, as a different embodiment, the processor 161 further uses the zero power of the overlapping portion with the first resource before the sending unit sends the first common channel on the first resource. The CSI-RS punctured the first common channel.

Optionally, as a different embodiment, the processor 161 further determines a second resource of the second common channel and/or the dedicated channel, where the second common channel includes a control channel and/or scheduling for scheduling random access response information. a control channel for grouping power control information, the dedicated channel comprising a C-RNTI or SPS-C-RNTI scrambled control channel or a data channel scheduled by the control channel; the processor 161 bypassing the second reference signal Mapping the second common channel and/or the dedicated channel to the second resource, where the second reference signal includes at least one of the CRS, the synchronization signal, and the CSI-RS; The 163 also transmits the second common channel and/or dedicated channel on the second resource. Optionally, as a different embodiment, the first resource or the second resource used by the processor 161 is one of: at least one PRB, at least one PRB pair, at least one control channel unit, and at least one resource. Unit group.

A common search space (eCSS) of the ePDCCH is introduced in the embodiment of the present invention. For convenience of explanation, the CSI-RS in the prior art is referred to as a dedicated CSI-RS. Referring to the embodiment illustrated in Figures 7 and 9, base station 160 implements method 70 or 900.

Corresponding to base station 160, Figure 17 is a schematic block diagram of another user equipment 170 in accordance with an embodiment of the present invention. User equipment 170 includes a processor 171, a memory 172, and a receiver 173.

The method disclosed in the above embodiment of the present invention can be applied to the processor 171. The processor 171 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 171 or an instruction in the form of software. The processor 171 described above may be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware. Component. The methods, steps, and logical block diagrams disclosed in the embodiments of the present invention may be implemented or carried out. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present invention may be directly implemented as hardware processor execution completion, or may be performed by a combination of hardware and software modules in the processor. The software modules can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory 172, and the processor 171 reads the information in the memory 172, in conjunction with its hardware to perform the steps of the above method.

The memory 172 stores the information that the processor 171 performs the following.

The processor 171 determines a first resource of the first common channel, the first common channel comprising at least one of a physical broadcast channel, a control channel for scheduling a system information block, and a control channel for scheduling paging information.

The receiver 173 receives the first common channel by bypassing the first reference signal on the determined first resource, where the first reference signal includes a cell-specific reference signal CRS and/or a synchronization signal, and does not include non-zero Power CSI-RS.

In the embodiment of the present invention, when the UE determines the first resource for the common channel, and receives the first common channel by bypassing the first reference signal that does not include the non-zero power CSI-RS, the interference of the CSI-RS on the common channel can be minimized. And through the first resource, the CSI-RS resource can be extended. Optionally, as a different embodiment, the processor 171 acquires the configured CSI-RS resource before the receiver 173 receives the first common channel on the first resource, where the CSI-RS includes The non-zero power CSI-RS and/or the zero power CSI-RS, the first resource and the CSI-RS resource overlap.

Optionally, as a different embodiment, the first reference signal used by the receiver 173 does not include a zero-power CSI-RS.

Optionally, as a different embodiment, the processor 171 does not perform measurement by using the non-zero power CSI-RS of the first resource overlap portion; and/or the processor 171 utilizes an overlap with the first resource. The zero-power CSI-RS performs measurement; and/or the receiver 173 does not specifically receive the CSI-RS or the non-zero-power CSI-RS on a resource that overlaps with the first resource.

Optionally, as a different embodiment, the processor 171 further determines at least one second resource of the second common channel and/or the dedicated channel, where the second common channel includes a control channel for scheduling random access response information and/or Or a control channel for scheduling group power control information, the dedicated channel including a C-RNTI or SPS-C-RNTI scrambled control channel or a data channel scheduled by the control channel; the receiver 173 is also in the second The second common channel is received by the resource bypassing the second reference signal, and the second reference signal includes at least one of the CRS, the synchronization signal, and the CSI-RS.

Optionally, as a different embodiment, the processor 171 further performs, by using, the CSI-RS that overlaps with the second resource when the UE receives the second common channel and/or the dedicated channel on the first resource. measuring.

Optionally, as a different embodiment, the first resource or the second resource used by the processor is one of: at least one PRB, at least one PRB pair, at least one control channel unit, and at least one Resource unit group.

A common search space (eCSS) of the ePDCCH is introduced in the embodiment of the present invention. For convenience of explanation, the CSI-RS in the prior art is referred to as a dedicated CSI-RS. Referring to the embodiment illustrated in Figures 8 and 9, user device 170 implements method 80 or 900.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention. A person skilled in the art can clearly understand that, for the convenience and the cleaning of the description, the specific working processes of the system, the device and the unit described above can refer to the corresponding processes in the foregoing method embodiments, and details are not described herein again.

In the several embodiments provided herein, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed. In addition, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical, mechanical or otherwise.

The units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention, which is essential to the prior art or part of the technical solution, may be embodied in the form of a software product stored in a storage medium, including The instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. .

The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the claims.

Claims

Rights request

1. A method of receiving information, characterized by including:

The UE obtains first configuration information, where the first configuration information is used to indicate a first set of resource units for transmitting common CSI-RS;

The UE determines a first resource for transmitting a common channel according to the first configuration information, and the first resource includes the first resource unit set;

The UE receives the common channel on the first resource, bypassing the first set of resource units.

2. The method according to claim 1, characterized in that, the UE obtains the first configuration information, including:

The UE obtains the preconfigured first configuration information; or

The UE obtains the first configuration information through synchronization signals and/or broadcast channels; or the UE obtains the first configuration information according to a frame number, subframe number or timeslot number, wherein the frame number, subframe number The number or time slot number has an associated relationship with the first configuration information.

3. The method according to claim 1 or 2, characterized in that it includes:

The common channel includes a first control channel and/or a first data channel, and the first control channel is used to schedule at least one of system information blocks, paging information, random access response information and group power control information, The first data channel is used to carry at least one of system information blocks, paging information and random access response information.

4. The method according to any one of claims 1 to 3, further comprising: the UE obtaining second configuration information, the second configuration information being used to indicate transmission dedicated

The second resource unit set of CSI-RS;

The UE determines a second resource for the transmission dedicated channel according to the second configuration information, and the second resource includes the second resource unit set;

The UE receives the dedicated channel on the second resource, bypassing the second set of resource units.

5. The method according to claim 4, characterized in that:

The first resource includes the second resource unit set; and/or the second resource includes the first resource unit set.

6. The method according to any one of claims 1 to 5, characterized in that: if the first resource unit set overlaps or partially overlaps with the second resource unit set, Then the UE performs measurement using the dedicated CSI-RS sent on the resource units in the second resource unit set that overlap with the first resource unit set; or

If the first resource unit set partially overlaps or does not overlap with the second resource unit set, and the first resource includes the second resource unit set, the UE does not utilize the second resource unit set. Measure the dedicated CSI-RS sent on resource units that do not overlap with the first resource unit set; or

If the first resource unit set partially overlaps or does not overlap with the second resource unit set, and the first resource includes the second resource unit set, the UE uses the second resource unit set Measure zero-power dedicated CSI-RS sent on resource units that do not overlap with the first set of resource units; or

If the first resource unit set partially overlaps or does not overlap with the second resource unit set, and the first resource includes the second resource unit set, the UE is not in the second resource unit set. The dedicated CSI-RS is received on resource units that do not overlap with the first resource unit set.

7. The method according to any one of claims 1 to 6, further comprising: the UE using the common CSI-RS in the first subframe set to perform synchronization and/or radio resource management measurements. , wherein the second subframe set includes subframes other than the first subframe set.

8. The method according to claim 7, characterized in that it includes:

The scrambling method of the common CSI-RS in the first subframe set is determined by the physical cell identity; the scrambling method of the common CSI-RS in the second subframe set is determined by the virtual cell identity.

9. The method according to claim 7 or 8, characterized in that the first subframe set is the following set:

A set of subframes for sending CRS and/or a set of subframes for sending synchronization signals.

10. The method according to any one of claims 1 to 9, characterized in that the first resource or the second resource is one of the following:

At least one PRB, at least one PRB pair, at least one control channel unit and at least one resource unit group.

11. A method of sending information, characterized by including:

The base station determines first configuration information, where the first configuration information is used to indicate a first set of resource units for transmitting common CSI-RS; The base station determines a first resource for transmitting a common channel according to the first configuration information, where the first resource includes the first resource unit set;

The base station transmits the common channel on the first resource, bypassing the first set of resource units.

12. The method according to claim 11, characterized in that it includes:

The base station sends the first configuration information to the UE through a synchronization signal and/or a broadcast channel; or the base station indicates the first configuration information to the UE through a frame number, a subframe number or a timeslot number, wherein the frame The number, subframe number or timeslot number has an associated relationship with the first configuration information.

13. The method according to claim 11 or 12, characterized in that: the common channel includes a first control channel and/or a first data channel, the first control channel is used for scheduling system information blocks, searching At least one of paging information, random access response information and group power control information, and the first data channel is used to carry at least one of system information block, paging information and random access response information.

14. The method according to any one of claims 11 to 13, further comprising:

The base station determines second configuration information, and the second configuration information is used to indicate a second set of resource units for transmitting dedicated CSI-RS;

The base station determines a second resource for a dedicated transmission channel according to the second configuration information, and the second resource includes the second resource unit set;

The base station transmits the dedicated channel on the second resource, bypassing the second set of resource units.

15. The method according to claim 14, characterized in that:

16. The method according to any one of claims 11 to 15, characterized in that: if the first resource unit set overlaps or partially overlaps with the second resource unit set, then the second resource unit set The dedicated CSI-RS sent on the resource units that overlap with the first set of resource units is used for measurement by the UE; or

If the first resource unit set partially overlaps or does not overlap with the second resource unit set, and the first resource includes the second resource unit set, then the second resource unit set is the same as the first resource unit set. Dedicated CSI-RS sent on non-overlapping resource units in a resource unit set is used by Bypassed when the UE performs measurements; or

If the first resource unit set partially overlaps or does not overlap with the second resource unit set, and the first resource includes the second resource unit set, then the second resource unit set is the same as the first resource unit set. Zero-power dedicated CSI-RS sent on non-overlapping resource units of a set of resource units for measurement by the UE; or

If the first resource unit set partially overlaps or does not overlap with the second resource unit set, and the first resource includes the second resource unit set, then the second resource unit set is the same as the first resource unit set. A resource unit set with non-overlapping resource units is used to bypass when the UE receives the dedicated CSI-RS.

17. The method according to any one of claims 11 to 16, characterized in that: the common CSI-RS in the first subframe set is used for synchronization and/or radio resource management measurements by the UE, wherein the The second subframe set includes subframes other than the first subframe set.

18. The method according to claim 17, characterized in that it includes:

19. The method according to claim 17 or 18, characterized in that the first subframe set is the following set:

20. The method according to any one of claims 11 to 19, characterized in that the first resource or the second resource is one of the following:

21. A method of sending information, characterized by including:

The base station determines a first resource of a first public channel, where the first public channel includes at least one of a physical broadcast channel, a control channel for scheduling system information blocks, and a control channel for scheduling paging information; The first common channel is mapped to the first resource in the form of a reference signal resource. The first reference signal includes a cell-specific reference signal CRS and/or a synchronization signal, and does not include non-zero power CSI-RS. ;

The base station sends the first common channel on the first resource.

22. The method according to claim 21, characterized in that, at the base station, the first Before sending the first public channel on a resource, it also includes:

The base station configures channel state information reference signal CSI-RS resources for the UE. The CSI-RS includes non-zero power CSI-RS and/or zero-power CSI-RS, and the first resource overlaps with the CSI-RS resource. .

23. The method according to claim 21 or 22, characterized in that:

The first reference signal does not include zero power CSI-RS.

24. The method according to claim 23, characterized in that, before the base station sends the first common channel on the first resource, it further includes:

The base station punctures the first common channel with the zero-power CSI-RS in the overlapping portion of the first resource.

25. The method according to any one of claims 21 to 24, further comprising: the base station determining a second resource of a second common channel and/or a dedicated channel, wherein the second common channel includes scheduling A control channel for random access response information and/or a control channel for scheduling group power control information, where the dedicated channel includes a control channel scrambled by C-RNTI or SPS-C-RNTI or a data channel scheduled by the control channel;

The base station maps the second common channel and/or dedicated channel to the second resource by bypassing the second reference signal; the second reference signal includes the CRS, the synchronization signal and the At least one of the above CSI-RS;

The base station sends the second public channel and/or the dedicated channel on the second resource.

26. The method according to claim 25, characterized in that the first resource or the second resource is one of the following:

27. A method of receiving information, characterized by including:

The UE determines a first resource of a first public channel, where the first public channel includes at least one of a physical broadcast channel, a control channel for scheduling system information blocks, and a control channel for scheduling paging information; The first common channel is received on a resource, bypassing a first reference signal, where the first reference signal includes a cell-specific reference signal CRS and/or a synchronization signal, and does not include non-zero power CSI-RS.

28. The method according to claim 27, wherein before the UE receives the first common channel on the first resource, it further includes: The UE acquires configured CSI-RS resources, the CSI-RS includes non-zero power CSI-RS and/or zero-power CSI-RS, and the first resource overlaps with the CSI-RS resource.

29. The method according to claim 27 or 28, characterized in that:

The first reference signal does not include zero power CSI-RS.

30. The method according to claim 28 or 29, characterized in that it includes:

The UE does not use the non-zero power CSI-RS in the overlapped portion with the first resource for measurement; and/or

The UE performs measurements using the zero-power CSI-RS in the overlapped portion with the first resource; and/or

The UE does not receive the CSI-RS or the non-zero power CSI-RS on resources that overlap with the first resource.

31. The method according to any one of claims 27 to 30, characterized in that: the UE determines at least one second resource of a second common channel and/or a dedicated channel, wherein the second common channel includes scheduling The control channel of the random access response information and/or the control channel of the scheduling group power control information, the dedicated channel includes a C-RNTI or SPS-C-RNTI scrambled control channel or a data channel scheduled by the control channel;

The UE receives the second common channel on the second resource, bypassing a second reference signal, where the second reference signal includes at least one of the CRS, the synchronization signal and the CSI-RS. .

32. The method according to claim 31, characterized in that it includes:

When the UE receives the second common channel and/or the dedicated channel on the first resource, the UE performs measurement using the CSI-RS in the overlapping portion with the second resource.

33. The method according to claim 31, characterized in that the first resource or the second resource is one of the following:

34. A user equipment, characterized in that it includes a first acquisition unit, a first determination unit and a receiving unit:

The first acquisition unit is used to acquire first configuration information, where the first configuration information is used to indicate a first set of resource units for transmitting common CSI-RS;

The first determining unit is configured to determine based on the first configuration information obtained by the first obtaining unit. Determine the first resource of the transmission common channel, where the first resource includes the first resource unit set; the receiving unit is configured to bypass the first resource on the first resource determined by the first determining unit A collection of units receives the common channel.

35. The user equipment according to claim 34, characterized in that the first acquisition unit is specifically used to:

Obtain the preconfigured first configuration information; or

Obtain the first configuration information through synchronization signals and/or broadcast channels; or

The first configuration information is obtained according to a frame number, subframe number or timeslot number, where the frame number, subframe number or timeslot number has an associated relationship with the first configuration information.

36. The user equipment according to claim 34 or 35, characterized in that:

The common channel used by the sending unit includes a first control channel and/or a first data channel. The first control channel is used for scheduling system information blocks, paging information, random access response information and group power control information. At least one of them, the first data channel is used to carry at least one of system information blocks, paging information and random access response information.

37. The user equipment according to any one of claims 34 to 36, further comprising a second acquisition unit and a second determination unit:

The second acquisition unit is used to acquire second configuration information, and the second configuration information is used to indicate a second set of resource units for transmission of dedicated CSI-RS;

The second determination unit is configured to determine the second resource of the transmission dedicated channel according to the second configuration information obtained by the second acquisition unit, where the second resource includes the second resource unit set; the receiving unit, Also configured to receive the dedicated channel on the second resource, bypassing the second set of resource units.

38. The user equipment according to claim 37, characterized in that:

39. The user equipment according to any one of claims 34 to 38, further comprising a measurement unit:

If the first resource unit set overlaps or partially overlaps with the second resource unit set, the measurement unit is used to utilize the resource units in the second resource unit set that overlap with the first resource unit set. Dedicated CSI-RS sent for measurement; or

If the first resource unit set partially overlaps or does not overlap with the second resource unit set, overlap, and the first resource includes the second resource unit set, then the measurement unit is used to not use the resource units in the second resource unit set that do not overlap with the first resource unit set. Dedicated CSI-RS for measurement; or

If the first resource unit set partially overlaps or does not overlap with the second resource unit set, and the first resource includes the second resource unit set, the measurement unit is used to utilize the second resource Measure the zero-power dedicated CSI-RS sent on the resource units in the unit set that do not overlap with the first resource unit set; or

If the first resource unit set partially overlaps or does not overlap with the second resource unit set, and the first resource includes the second resource unit set, the receiving unit is also configured to not The dedicated CSI-RS is received on resource units in the resource unit set that do not overlap with the first resource unit set.

40. The user equipment according to any one of claims 34 to 39, characterized in that the measurement unit is also used to: measure, wherein the second subframe set includes in addition to the first subframe set subframe.

41. The user equipment according to claim 40, further comprising a descrambling unit: the descrambling unit is configured to determine the common CSI-RS in the first subframe set through a physical cell identity. The descrambling method of the common CSI-RS in the second subframe set is determined through the virtual cell identity.

42. The user equipment according to claim 40 or 41, characterized in that the first subframe set used by the measurement unit is the following set:

43. The user equipment according to any one of claims 34 to 42, characterized in that, the first resource used by the first determining unit or the second resource used by the second determining unit is One of the following:

44. A base station, characterized in that it includes a first determining unit, a second determining unit and a sending unit:

The first determining unit is configured to determine first configuration information, where the first configuration information is used to indicate a first set of resource units for transmitting common CSI-RS; The second determination unit is configured to determine the first resource of the transmission common channel according to the first configuration information determined by the first determination unit, where the first resource includes the first resource unit set; the sending unit is The common channel is sent on the first resource determined by the second determination unit, bypassing the first resource unit set.

45. The base station according to claim 44, characterized in that the sending unit is specifically used for:

Send the first configuration information to the UE through a synchronization signal and/or a broadcast channel; or indicate the first configuration information to the UE through a frame number, subframe number or timeslot number, where the frame number, subframe number or The time slot number has an associated relationship with the first configuration information.

46. The base station according to claim 44 or 45, characterized in that:

47. The base station according to any one of claims 44 to 46, further comprising a third determination unit and a fourth determination unit:

The third determining unit is used to determine second configuration information, and the second configuration information is used to indicate a second set of resource units for transmitting dedicated CSI-RS;

The fourth determination unit is configured to determine the second resource of the transmission dedicated channel according to the second configuration information determined by the third determination unit, where the second resource includes the second resource unit set; the sending unit, It is also configured to send the dedicated channel on the second resource, bypassing the second set of resource units.

48. The base station according to claim 47, characterized in that:

49. The base station according to any one of claims 44 to 48, characterized in that: if the first resource unit set overlaps or partially overlaps with the second resource unit set, the sending unit is specifically configured to: Dedicated CSI-RS sent on resource units in the second set of resource units that overlap with the first set of resource units are used for measurement by the UE; or

If the first resource unit set partially overlaps or does not overlap with the second resource unit set, and the first resource includes the second resource unit set, the sending unit is specifically configured to: Dedicated CSI-RS sent on resource units in the second resource unit set that do not overlap with the first resource unit set are used to bypass when performing measurements by the UE; or

If the first resource unit set partially overlaps or does not overlap with the second resource unit set, and the first resource includes the second resource unit set, the sending unit is specifically configured to Zero-power dedicated CSI-RS sent on resource units in the resource unit set that do not overlap with the first resource unit set are used for measurement by the UE; or

If the first resource unit set partially overlaps or does not overlap with the second resource unit set, and the first resource includes the second resource unit set, then the second resource unit used by the sending unit The resource units in the set that do not overlap with the first resource unit set are used to be bypassed when the UE receives the dedicated CSI-RS.

50. The base station according to any one of claims 44 to 49, characterized in that the common CSI-RS in the first subframe set is used for synchronization and/or radio resource management measurements by the UE, wherein the The second subframe set includes subframes other than the first subframe set.

51. The base station according to claim 50, further comprising a scrambling unit: the scrambling unit is configured to determine the common CSI-RS in the first subframe set through a physical cell identity. Scrambling mode; The scrambling mode of the common CSI-RS in the second subframe set is determined through the virtual cell identity.

52. The base station according to claim 50 or 51, characterized in that the first subframe set is the following set:

53. The base station according to any one of claims 44 to 52, characterized in that, the first resource used by the first determining unit or the second resource used by the third determining unit is as follows: A kind of:

54. A base station, characterized in that it includes a first determining unit, a first mapping unit and a sending unit:

The first determining unit is used to determine a first resource of a first public channel, where the first public channel includes at least one of a physical broadcast channel, a control channel for scheduling system information blocks, and a control channel for scheduling paging information. ;

The first mapping unit is configured to map the third reference signal by bypassing resources of the first reference signal. A common channel is mapped to the first resource, and the first reference signal includes a cell-specific reference signal CRS and/or a synchronization signal, and does not include non-zero power CSI-RS;

The sending unit is configured to send the first common channel on the first resource.

55. The base station according to claim 54, characterized in that, further comprising a configuration unit: the configuration unit is configured to configure the UE before the sending unit sends the first common channel on the first resource. Channel state information reference signal CSI-RS resources are configured, the CSI-RS includes non-zero power CSI-RS and/or zero-power CSI-RS, and the first resource overlaps with the CSI-RS resource.

56. The base station according to claim 54 or 55, characterized in that:

The first reference signal used by the first mapping unit does not include zero power CSI-RS.

57. The base station according to claim 56, further comprising a puncturing unit: the puncturing unit is configured to, before the sending unit sends the first common channel on the first resource, The first common channel is punctured with the zero-power CSI-RS in an overlapping portion of the first resource.

58. The base station according to any one of claims 54 to 57, further comprising a second determination unit and a second mapping unit:

The second determining unit is configured to determine a second resource of a second common channel and/or a dedicated channel, wherein the second common channel includes a control channel for scheduling random access response information and/or a control channel for scheduling group power control information. Control channel, the dedicated channel includes a C-RNTI or SPS-C-RNTI scrambled control channel or a data channel scheduled by the control channel;

The second mapping unit is configured to map the second common channel and/or dedicated channel to the second resource by bypassing a second reference signal, where the second reference signal includes the CRS, At least one of the synchronization signal and the CSI-RS;

The sending unit is also configured to send the second public channel and/or the dedicated channel on the second resource.

59. The base station according to claim 58, characterized in that, the first resource used by the first determining unit or the second resource used by the second determining unit is one of the following: at least one PRB, at least one PRB pair, at least one control channel unit and at least one resource unit group.

60. A user equipment, characterized in that it includes a first determining unit and a receiving unit: the first determining unit is used to determine the first resource of the first common channel, the first common channel The channel includes at least one of a physical broadcast channel, a control channel for scheduling system information blocks, and a control channel for scheduling paging information;

The receiving unit is configured to receive the first common channel on the first resource determined by the first determining unit, bypassing a first reference signal, where the first reference signal includes a cell-specific reference signal CRS and/or Or synchronization signal, and does not include non-zero power CSI-RS.

61. The user equipment according to claim 60, characterized in that, further comprising an acquisition unit: the acquisition unit is configured to acquire the first public channel before the receiving unit receives the first public channel on the first resource. Configured CSI-RS resources, the CSI-RS includes non-zero power CSI-RS and/or zero-power CSI-RS, and the first resource overlaps with the CSI-RS resource.

62. The user equipment according to claim 60 or 61, characterized in that:

The first reference signal used by the receiving unit does not include zero power CSI-RS.

63. The user equipment according to claim 61 or 62, further comprising a measurement unit:

The measurement unit is configured to perform measurement without using the non-zero power CSI-RS in the overlapping portion with the first resource; and/or

The measurement unit is configured to perform measurement using the zero-power CSI-RS in the overlapped portion with the first resource; and/or

The receiving unit is specifically configured to receive the CSI-RS or the non-zero power CSI-RS on resources that do not overlap with the first resource.

64. The user equipment according to any one of claims 60 to 63, further comprising a second determining unit:

The second determining unit is configured to determine at least one second resource of a second common channel and/or a dedicated channel, wherein the second common channel includes a control channel for scheduling random access response information and/or a scheduling group power control Information control channel, the dedicated channel includes a control channel scrambled by C-RNTI or SPS-C-RNTI or a data channel scheduled by the control channel;

The receiving unit is further configured to receive the second common channel on the second resource, bypassing a second reference signal, where the second reference signal includes the CRS, the synchronization signal and the CSI-RS. at least one of them.

65. The user equipment according to claim 64, characterized in that the measurement unit is also used for:

When the UE receives the second public channel and/or the dedicated channel on the first resource, using the Measurement is performed on the CSI-RS in the overlapping portion of the second resource.

66. The user equipment according to claim 64, wherein the first resource used by the first determining unit or the second resource used by the second determining unit is one of the following: