CN104813724A - A PUSCH resource mapping method and device - Google Patents

Abstract

The embodiment of the invention relates to the field of wireless communication, and discloses a method and a device for mapping PUSCH resources, when SRS and PUSCH or PUCCH are simultaneously transmitted in a certain subframe, in the subframe for configuring or scheduling the SRS, the PUSCH of the same carrier wave carries out physical resource mapping according to actually configured physical resources, and the symbol where the SRS is positioned is not subjected to rate matching; and when the SRS is transmitted on the same carrier wave, the PUSCH resource with the same symbol as the SRS on the PUSCH resource of the same carrier wave is punched. The method can clarify the resource mapping scheme of the PUSCH under the condition of supporting the SRS and the PUSCH/PUCCH simultaneous transmission, and eliminate the PUSCH resource misjudgment caused by the fact that the eNB side does not know whether the uplink is limited in power or not.

Description

TECHNICAL FIELD The present invention relates to the field of wireless communication, and in particular to a PUSCH resource mapping method and device. Background technique

In the existing 3GPP E-UTRA system, in the case of carrier aggregation, SRS and PUSCH (physical downlink data share channel, physical downlink data shared channel) /PUCCH channel (physical downlink control channel, physical downlink control channel) are not supported in transmit at the same time. If the SRS of a certain carrier and the PUSCH of other carriers appear on the last symbol of a subframe at the same time, the UE does not send the SRS, and the PUSCH on this carrier is mapped to all allocated REs, and no rate matching (rate match), as shown in Figure 1. In the same carrier, if the UE has SRS transmission in the last symbol of a subframe, and there is PUSCH transmission in the subframe, then PUSCH is not sent on the last symbol, that is, after PUSCH is rate matched according to n-1 symbols Mapped to the first n-1 symbols of the n symbols of the subframe. Or in the same carrier, if a cell-level SRS bandwidth is configured in the last symbol of a certain subframe, and PUSCH partially or completely overlaps with the bandwidth in the frequency domain, then the PUSCH performs rate matching according to n symbols and is mapped to the Subframe n symbol symbols. Since the eNB knows exactly whether the SRS is sent, there is no ambiguity problem about how to perform rate matching on the PUSCH. However, in LTE Rel-11, if the UE is configured with multiple TAGs (time advanced group), it can support the simultaneous transmission of SRS and PUSCH/PUCCH on different carriers, only when the sum of the power of SRS and PUSCH/PUCCH When the preset power upper limit is exceeded, the SRS is not sent. This situation causes the UE to sometimes send SRS, and sometimes not to send SRS due to power limitation. Since the eNB does not know whether the UE is power-limited, according to the existing protocol, the eNB cannot clearly transmit the PUSCH transmitted on the same carrier as the SRS according to How many symbols to perform the rate matching operation on. Contents of the invention

The purpose of the embodiments of the present invention is to provide a PUSCH resource mapping method and device, which can clarify the PUSCH resource mapping scheme under the condition of supporting SRS and PUSCH/PUCCH simultaneous transmission.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions: A PUSCH resource mapping method, when there is a subframe where SRS and PUSCH or PUCCH are transmitted at the same time, in the subframe where SRS is configured or scheduled, in the subframe of the same carrier PUSCH performs rate matching physical resource mapping according to the actual configured physical resources, and does not perform rate matching on the symbol where the SRS is located, or does not deduct the symbol where the SRS is located during rate matching, regardless of whether the SRS is not sent due to power limitation or because the power is not limited. SRS is sent normally; when there is SRS transmission on the same carrier, puncturing the PUSCH resource of the same symbol as the SRS on the PUSCH resource of the same carrier, that is, the PUSCH of the same carrier is not performed on the same symbol as the SRS Resource mapping.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions: A PUSCH resource mapping method, in the subframe where the SRS is configured or scheduled, rate matching is performed on the PUSCH of the same carrier according to the actual configured physical resources, or It is said that the symbol where the SRS is not deducted during rate matching, no matter whether the SRS is not sent due to power limitation or the SRS is normally sent because the power is not limited, that is, the rate matching is not performed on the symbol where the SRS is located; when there is SRS transmission on the same carrier, And when the frequency band where the transmitted SRS is located partially or completely overlaps with the frequency band where the PUSCH resource of the same carrier is located, the PUSCH resource with the same symbol as the SRS on the PUSCH resource of the same carrier is punctured, that is, The above-mentioned PUSCH of the same carrier does not perform resource mapping on the same symbol as the SRS.

In order to achieve the above object, the embodiment of the present invention provides the following technical solution: In a subframe configured or scheduled with SRS, when there is UCI transmission on the PUSCH of the same carrier, it is assumed that SRS is transmitted when determining the number of modulation symbols of the UCI Or not to transmit, no matter not to transmit due to power limited SRS or normal to transmit due to power unlimited SRS. In order to achieve the above object, the embodiments of the present invention provide the following technical solutions: A device for PUSCH resource mapping, including: a first rate matching unit, configured to configure or schedule when SRS and PUSCH or PUCCH are transmitted simultaneously in a certain subframe In the subframe of the SRS, the PUSCH of the same carrier performs rate matching according to the actual configured physical resources, and does not perform rate matching on the symbol where the SRS is located, or does not deduct the symbol where the SRS is located during rate matching, regardless of whether the SRS is not due to power limitation. The transmission is still normal transmission due to unrestricted power SRS; the first puncturing unit is configured to puncture the PUSCH resource of the same symbol as the SRS on the PUSCH resource of the same carrier when the SRS is transmitted on the same carrier.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions: A device for PUSCH resource mapping, including: a second rate matching unit, configured to configure or schedule when there is SRS and PUSCH/PUCCH simultaneous transmission in a certain subframe In subframes with SRS, the PUSCH of the same carrier performs rate matching according to the actual configured physical resources, and does not perform rate matching on the symbol where the SRS is located, or in other words, the symbol where the SRS is located is not deducted during rate matching, regardless of the SRS due to power limitation. No transmission or normal transmission of SRS due to unrestricted power; the second puncturing unit is used for when there is SRS transmission on the same carrier, and the frequency band where the transmitted SRS is located is the same as the frequency band where the PUSCH resource of the same carrier is located When the frequency bands overlap partially or completely, puncture is performed on the PUSCH resources of the same symbol as the SRS on the PUSCH resources of the same carrier. Compared with the prior art, the embodiment of the present invention has the main difference and its effect in that: in the case of supporting SRS and PUSCH/PUCCH simultaneous transmission, the rate matching and resource mapping scheme of PUSCH and the number of modulation symbols of UCI can be clarified, Eliminate the PUSCH rate matching and resource misjudgment caused by the eNB side not knowing whether the uplink power is limited, as well as the misjudgment of the number of UCI modulation symbols. Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings that are used in the embodiments of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention. For Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort. Figure 1 is a schematic diagram of the mapping relationship between SRS and PUSCH in the prior art; Figure 2 is a schematic diagram of the mapping relationship between SRS and PUSCH in an embodiment of the present invention; Figure 3 is a schematic diagram of the mapping relationship between SRS and PUSCH in an embodiment of the present invention; The first schematic diagram of the apparatus for mapping PUSCH resources in the embodiment; FIG. 5 is the second schematic diagram of the apparatus for mapping PUSCH resources in the embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to make the purpose, technical solutions and advantages of the present invention clearer, the implementation of the present invention will be further described in detail below in conjunction with the accompanying drawings.

Embodiment one:

A PUSCH resource mapping method, when there is SRS and PUSCH/PUCCH simultaneous transmission in a certain subframe, in the subframe where SRS is configured or scheduled, the PUSCH of the same carrier performs physical rate matching according to the actually configured physical resources, That is, no rate matching is performed on the symbol where the SRS is located, or the symbol where the SRS is located is not deducted during rate matching, regardless of whether the SRS is not transmitted due to power limitation or the SRS is normally transmitted due to power unlimited. When the SRS is transmitted on the same carrier, the PUSCH resource of the same symbol as the SRS on the PUSCH resource of the same carrier is punctured, that is, the PUSCH of the same carrier is not resource mapped on the same symbol as the SRS.

Wherein the PUSCH of the same carrier and the cell-level SRS bandwidth partially overlap or completely overlap or do not overlap.

The SRS and the PUSCH of the same carrier are sent by the same user or different users.

The user configures a single TAG or multiple TAGs.

The resource mapping scheme provided above can clarify the PUSCH resource mapping scheme in the case of supporting SRS and PUSCH/PUCCH simultaneous transmission, and eliminate the PUSCH resource misjudgment caused by the eNB side not knowing whether the uplink power is limited.

Embodiment two:

A PUSCH resource mapping method, when there are SRS and PUSCH/PUCCH in a certain subframe During simultaneous transmission, in the subframe where SRS is configured or scheduled, rate matching is performed on the PUSCH of the same carrier according to the actual configured physical resources, that is, the rate matching is not performed on the symbol where the SRS is located, or the SRS location is not deducted during rate matching. The symbols of are not sent due to power-limited SRS or normally transmitted due to power-unlimited SRS.

When there is SRS transmission on the same carrier, and the frequency band where the transmitted SRS is located partially or completely overlaps with the frequency band where the PUSCH resource of the same carrier is located, the PUSCH resource of the same carrier is not in the SRS Resource mappings are performed on the same symbols. Take the carrier aggregation scenario as an example, as shown in Figure 3. In a non-carrier aggregation scenario, this technology is still applicable, for example, a scenario with only one carrier.

The SRS and the PUSCH of the same carrier are sent by the same user or different users.

The user configures a single TAG or multiple TAGs.

Taking the carrier aggregation scenario as an example, as shown in FIG. 2, when there is SRS transmission on the same carrier, and the frequency band where the transmitted SRS is located partially or completely overlaps with the frequency band where the PUSCH resource of the same carrier is located , the PUSCH of the same carrier performs data rate matching and physical resource mapping according to the actually configured physical resources. In a non-carrier aggregation scenario, this technology is still applicable, for example, a scenario with only one carrier.

Example 3

As shown in FIG. 4, a device for PUSCH resource mapping includes: a first rate matching unit 41 and a first puncturing unit 42.

The first rate matching unit 41 is configured to perform rate matching on the PUSCH of the same carrier according to the actual configured physical resources in the subframe where the SRS is configured or scheduled when the SRS and the PUSCH or PUCCH are transmitted simultaneously in a certain subframe, No rate matching is performed on the symbol where the SRS is located, or the symbol where the SRS is located is not deducted during rate matching, regardless of whether the SRS is not transmitted due to power limitation or the SRS is normally transmitted due to power unlimited;

The first puncturing unit 42 is configured to, when there is SRS transmission on the same carrier, On the PUSCH resource of the carrier, the PUSCH resource of the same symbol as the SRS is punctured. Wherein the PUSCH of the same carrier and the cell-level SRS bandwidth partially overlap or completely overlap or do not overlap.

The SRS and the PUSCH of the same carrier are sent by the same user or different users. The user configures a single TAG or multiple TAGs. Example 4

As shown in FIG. 5, a PUSCH resource mapping device includes a second rate matching unit 51 and a second puncturing unit 52, wherein:

The second mapping unit 51 is configured to perform rate matching on the PUSCH of the same carrier according to the actual configured physical resources in a subframe in which SRS and PUSCH/PUCCH are transmitted simultaneously in a certain subframe, not The symbol where the SRS is located is used for rate matching, or the symbol where the SRS is located is not deducted during rate matching, regardless of whether the SRS is not sent due to power limitation or the SRS is normally sent due to power unlimited;

The second puncturing unit 52 is configured to: when there is SRS transmission on the same carrier, and the frequency band where the transmitted SRS is located partially or completely overlaps with the frequency band where the PUSCH resource of the same carrier is located, The PUSCH resource of the same symbol as the SRS on the PUSCH resource of the same carrier mentioned above is punctured.

Wherein, the SRS and the PUSCH of the same carrier are sent by the same user or different users. The user configures a single TAG or multiple TAGs.

Example 5

In the subframe where SRS is configured or scheduled, when there is UCI transmission on the PUSCH of the same carrier, it is assumed that the SRS is sent or not sent when determining the number of modulation symbols of the UCI, regardless of whether the SRS is not sent due to power limitation or due to The power unlimited SRS is sent normally.

Wherein, the SRS and the UCI are sent by the same user.

The user configures a single TAG or multiple TAGs. Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be realized by hardware, or by means of software plus a necessary general-purpose hardware platform. Based on such understanding, the technical solution of the present invention It can be embodied in the form of software products, which can be stored in a non-volatile storage medium (which can be CD-ROM, U disk, mobile hard disk, etc.), and include several instructions to make a computer device (which can be It is a personal computer, a server, or a network device, etc.) to execute the methods described in various embodiments of the present invention. Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, those skilled in the art should understand that various changes may be made in form and detail without departing from the present invention. The spirit and scope of the invention.

Claims (17)

Rights request 1. A method for PUSCH resource mapping, characterized in that: In the subframe where the SRS is configured or scheduled, the PUSCH of the same carrier performs rate matching according to the actual configured physical resources, and the symbol where the SRS is not deducted during rate matching; When the SRS is transmitted on the same carrier, the PUSCH resource of the same symbol as the SRS on the PUSCH resource of the same carrier is punctured, that is, the PUSCH of the same carrier is not resource mapped on the same symbol as the SRS. 2. The method according to claim 1, wherein the PUSCH of the same carrier and the cell-level SRS bandwidth partially overlap or fully overlap or have no overlap. 3. The method according to claim 1, the SRS and the PUSCH of the same carrier are sent by the same user or different users. 4. The method according to claim 3, wherein the user configures a single TAG or multiple TAGs. 5. A method for PUSCH resource mapping, characterized in that: In the subframe where the SRS is configured or scheduled, the PUSCH of the same carrier performs rate matching according to the actual configured physical resources, and the symbol where the SRS is not deducted during rate matching; When there is SRS transmission on the same carrier, and the frequency band where the transmitted SRS is located partially or completely overlaps with the frequency band where the PUSCH resource of the same carrier is located, the PUSCH resource of the same carrier is not in the SRS Resource mappings are performed on the same symbols. 6. The method according to claim 5, the SRS and the PUSCH of the same carrier are sent by the same user or different users. 7. The method according to claim 6, wherein the user configures a single TAG or multiple TAGs. 8. A device for PUSCH resource mapping, comprising: The first rate matching unit is configured to configure or schedule SRS in subframes of the same carrier PUSCH performs rate matching according to the actual configured physical resources, and does not deduct the symbol where the SRS is located during rate matching; The first puncturing unit is configured to puncture the PUSCH resource of the same symbol as the SRS on the PUSCH resource of the same carrier when the SRS is transmitted on the same carrier, that is, the PUSCH of the same carrier is not the same as the SRS The resource mapping is performed on the symbol. 9. The device according to claim 8, wherein the PUSCH of the same carrier and the cell-level SRS bandwidth partially overlap or fully overlap or have no overlap. 10. The device according to claim 8, the SRS and the PUSCH of the same carrier are sent by the same user or different users. 11. The device according to claim 10, wherein the user configures a single TAG or multiple TAGs. 12. A device for PUSCH resource mapping, characterized in that it includes: The second rate matching unit is used to perform rate matching on the PUSCH of the same carrier according to the actual configured physical resources in the subframe in which the SRS is configured or scheduled, and the symbol where the SRS is not deducted during rate matching; The second puncturing unit is configured to: when there is SRS transmission on the same carrier, and when the frequency band where the transmitted SRS is located partially or completely overlaps with the frequency band where the PUSCH resource of the same carrier is located, the The PUSCH resource of the same symbol as the SRS is punctured on the PUSCH resource of the same carrier, that is, resource mapping is not performed on the same symbol of the PUSCH of the same carrier as the SRS. 13. The device according to claim 12, the SRS and the PUSCH of the same carrier are sent by the same user or different users. 14. The device according to claim 12, wherein the user configures a single TAG or multiple TAGs. 15. A method of determining resources, characterized by comprising In the subframe configured or scheduled with SRS, when there is UCI transmission on the PUSCH of the same carrier When , it is assumed that the SRS is sent or not sent when determining the number of modulation symbols of the UCI. 16. The method according to claim 15, the SRS and the UCI are sent by the same user. 17. The method according to claim 16, wherein the user configures a single TAG or multiple TAGs.