CN-122029750-A - Communication with a wireless communication device using a set of receive antenna ports

Abstract

A method performed by a network node of a wireless communication network for communicating with a wireless communication device using a set of receive antenna ports. The method comprises receiving (501) a capability message. The capability message indicates a capability of the wireless communication device associated with a group of receive antenna ports of the wireless communication device. The method also includes configuring (502) communication with the wireless communication device based on the received capability message.

Inventors

• B. Markey
• A. NELSON
• S. Jacobson
• ZHANG XINLIN
• F. Atlet

Assignees

• 瑞典爱立信有限公司

Dates

Publication Date

20260512

Application Date

20241009

Priority Date

20231009

Claims (20)

1. 1. A method performed by a network node (111) of a wireless communication network (100) for communicating with a wireless communication device (121) using a set of receive antenna ports, the method comprising: Receiving (501) a capability message indicating a capability of the wireless communication device (121) in relation to a group of receiving antenna ports of the wireless communication device (121), and Communication with the wireless communication device (121) is configured (502) based on the received capability message.
2. 2. The method according to claim 1, wherein the capability message comprises information about each group of receiving antenna ports and/or their relationship to each other.
3. 3. The method of any of claims 1-2, wherein the capability message includes information about one or more of: a. The total number of receive antennas; b. the number of receive antenna port groups; c. the number of receive antennas per receive antenna port group; d. -a maximum number of spatial multiplexing layers supported by the wireless communication device (121) for downlink, DL, reception of each set of receive antenna ports; e. The total number of transmitter chains; f. The number of transmitter chains per set of receive antenna ports; g. For codebook-based uplink, UL, transmissions, for each group of receive antenna ports, a maximum number of spatial multiplexing layers supported by the wireless communication device (121); h. for non-codebook based UL transmissions, a maximum number of spatial multiplexing layers supported by the wireless communication device (121) for UL transmissions for each receive antenna port group; i. configuration of the transmitter chain relative to the set of receive antenna ports; j. the direction of the set of receive antenna ports and/or the relative direction of the set of receive antenna ports with respect to each other; k. Interference measurement or cancellation capability between receiver chains belonging to different sets of receive antenna ports; combining capability between the receiving antenna port groups; interference measurement and/or cancellation capability between receiver chains belonging to the same set of receive antenna ports; An ability to operate on a DL codebook via the set of receive antenna ports; Capability for reciprocity-based operation via the set of receive antenna ports; p, supporting switching between the port groups of the receiving antenna; a switching delay for switching between the groups of receive antenna ports; the on/off capability in the receive antenna port group; s. antenna constellation, antenna polarization, antenna/panel coordinates of each receiving antenna port group; Support for type I and/or type II codebook based operation via the set of receive antenna ports; Support for operation of shared and/or individual channel state information reference signal, CSI-RS, resources based on each set of receive antenna ports; v. maximum rank of each receiving antenna port group; CSI processing unit capabilities for different receive antenna port groups; Ability to exchange control information via one or more of said groups of receiving antenna ports, Y. maximum number of CSI-RS ports per receive antenna port group.
4. 4. A method according to any of claims 1-3, wherein the capabilities for different groups of receiving antenna ports are received individually or jointly.
5. 5. The method of any of claims 1-4, wherein the capability related to the set of receive antenna ports includes information regarding support for switching between sets of receive antenna ports, and wherein the supported antenna switching scheme is jointly received for all sets of receive antenna ports.
6. 6. The method of any of claims 1-4, wherein the capability related to the set of receive antenna ports includes information regarding support for switching between sets of receive antenna ports, and wherein the supported antenna switching scheme is received per set of receive antenna ports.
7. 7. The method of any of claims 3-6, wherein the configuration of the transmitter chain relative to the set of receive antenna ports includes information regarding whether or how the transmitter chain is associated with a different set of receive antenna ports or both.
8. 8. The method of any of claims 3-7, wherein the capability for DL codebook-based operation via the set of receive antenna ports comprises support for transmission of multiple precoding matrix indicator, PMIs, per CSI-RS transmission.
9. 9. The method of any of claims 3-8, wherein the capability for reciprocity-based operation via the set of receive antenna ports includes support for grouping and mapping of sounding reference signal, SRS, ports or resources to each set of receive antenna ports.
10. 10. The method of any of claims 1-9, wherein configuring communication with the wireless communication device (121) based on the received message comprises configuring DL codebook-based operation via the set of receive antenna ports.
11. 11. The method of any of claims 1-10, wherein configuring communication with the wireless communication device (121) based on the received message comprises configuring a codeword association with the set of receive antenna ports.
12. 12. The method according to any of claims 1-11, wherein the wireless communication device (121) is a user equipment, UE, a fixed radio access, FWA, node.
13. 13. A network node (111) for a wireless communication network (100) and adapted to communicate with a wireless communication device (121) using a set of receive antenna ports, wherein the network node (111) is further adapted to: receiving a capability message indicating a capability of the wireless communication device (121) associated with a group of receive antenna ports of the wireless communication device (121), and Communication with the wireless communication device (121) is configured based on the received capability message.
14. 14. The network node (111) of claim 13, further configured to perform the method of any of claims 2-12.
15. 15. A computer program (803) comprising computer readable code means which, when executed on at least one processor (801) of a network node (111) according to claim 13, causes the network node (111) to perform the method according to any one of claims 1-12.
16. 16. A method performed by a wireless communication device (121) using a set of receive antenna ports for communicating with a network node (111) of a wireless communication network (100), the method comprising: Transmitting (601) a capability message to a network node (111), the capability message indicating a capability of the wireless communication device (121) related to a group of receive antenna ports of the wireless communication device (121), and -Receiving (602) a configuration message from the network node (111), the configuration message configuring communication with the network node (111).
17. 17. The method according to claim 16, wherein the capability message comprises information about each group of receiving antenna ports and/or their relationship to each other.
18. 18. The method of any of claims 16-17, wherein the capability message includes information about one or more of: a. The total number of receive antennas; b. the number of receive antenna port groups; c. the number of receive antennas per receive antenna port group; d. -a maximum number of spatial multiplexing layers supported by the wireless communication device (121) for downlink, DL, reception of each set of receive antenna ports; e. The total number of transmitter chains; f. The number of transmitter chains per set of receive antenna ports; g. For codebook-based uplink, UL, transmissions, for each group of receive antenna ports, a maximum number of spatial multiplexing layers supported by the wireless communication device (121); h. for non-codebook based UL transmissions, a maximum number of spatial multiplexing layers supported by the wireless communication device (121) for UL transmissions for each receive antenna port group; i. configuration of the transmitter chain relative to the set of receive antenna ports; j. the direction of the set of receive antenna ports and/or the relative direction of the set of receive antenna ports with respect to each other; k. Interference measurement or cancellation capability between receiver chains belonging to different sets of receive antenna ports; combining capability between the receiving antenna port groups; interference measurement and/or cancellation capability between receiver chains belonging to the same set of receive antenna ports; An ability to operate on a DL codebook via the set of receive antenna ports; Capability for reciprocity-based operation via the set of receive antenna ports; p, supporting switching between the port groups of the receiving antenna; a switching delay for switching between the groups of receive antenna ports; the on/off capability in the receive antenna port group; s. antenna constellation (X-by-Y) for each receive antenna port group, antenna polarization, antenna/panel coordinates; Support for type I and/or type II codebook based operation via the set of receive antenna ports; Support for operation of shared and/or individual channel state information reference signal, CSI-RS, resources based on each set of receive antenna ports; v. maximum rank of each receiving antenna port group; CSI processing unit capabilities for different receive antenna port groups; Ability to exchange control information via one or more of said groups of receiving antenna ports, Y. maximum number of CSI-RS ports per receive antenna port group.
19. 19. The method of any of claims 16-18, wherein the capabilities for different groups of receive antenna ports are received individually or jointly.
20. 20. The method of any of claims 16-19, wherein the capability related to the set of receive antenna ports includes information regarding support for switching between sets of receive antenna ports, and wherein the supported antenna switching scheme is jointly transmitted for all sets of receive antenna ports.

Description

Communication with a wireless communication device using a set of receive antenna ports Technical Field Embodiments disclosed herein relate to communication with a wireless communication device using a set of receive antenna ports. Corresponding computer programs and computer program carriers are also disclosed. Background In a typical wireless communication network, wireless devices, also referred to as wireless communication devices, mobile stations, stations (STAs), and/or User Equipment (UE), communicate with one or more Core Networks (CNs) via a local area network, such as a Wi-Fi network, or a Radio Access Network (RAN). The RAN covers a geographical area which is divided into service areas or cell areas, which may also be referred to as beams or beam groups, each service area or cell area being served by a radio access node, such as a radio access node (e.g. Wi-Fi access point or Radio Base Station (RBS)), which in some networks may also be denoted e.g. as NodeB, eNodeB (eNB) or gNB denoted in 5G. A service area or cell area is a geographical area where radio coverage is provided by a radio access node. The radio access node communicates with wireless devices within range of the radio access node over an air interface operating at radio frequencies. Specifications for Evolved Packet System (EPS), also known as fourth generation (4G) networks, have been completed within the third generation partnership project (3 GPP) and this work continues in the upcoming release of 3GPP releases. Fifth generation (5G) networks, also known as 5G New Radios (NRs), have also been specified and are now working on further specifications for 5G networks. This work will continue in the 3GPP release at hand. EPS includes an evolved universal terrestrial radio access network (E-UTRAN), also known as a Long Term Evolution (LTE) radio access network, and an Evolved Packet Core (EPC), also known as a System Architecture Evolution (SAE) core network. E-UTRAN/LTE is a variant of 3GPP radio access networks in which the radio access node is directly connected to the EPC core network, rather than the Radio Network Controller (RNC) used in the 3G network. In general, in E-UTRAN/LTE, the functionality of a 3G RNC is distributed between a radio access node (e.g., eNodeB in LTE) and the core network. As such, the RANs of EPS have a substantially "flat" architecture that includes radio access nodes that are directly connected to one or more core networks, i.e., they are not connected to the RNC. To compensate for this, the E-UTRAN specification defines a direct interface between radio access nodes, which is denoted as X2 interface. Wireless communication system in 3GPP Fig. 1 illustrates a simplified wireless communication system. Consider the simplified wireless communication system of fig. 1 in which UE 12 communicates with one or more access nodes 103-104, which one or more access nodes 103-104 in turn are connected to network node 106. Access nodes 103-104 are part of radio access network 10. For wireless communication systems according to the 3GPP Evolved Packet System (EPS), also referred to as long term evolution, LTE or 4G standard specifications, such as specified in 3GPP TS 36.300 and related specifications, the access nodes 103-104 typically correspond to evolved nodebs (enbs) and the network node 106 typically corresponds to a Mobility Management Entity (MME) and/or Serving Gateway (SGW). The eNB is part of a radio access network 10, in this case the radio access network 10 is an E-UTRAN (evolved universal terrestrial radio access network), while the MME and SGW are both part of an EPC (evolved packet core network). The enbs are connected to each other via an X2 interface and to the EPC via an S1 interface, more specifically to the MME via S1-C and to the SGW via S1-U. On the other hand, for wireless communication systems according to the 3gpp 5G system 5GS (also referred to as new radio NR or 5G) standard specifications, such as specified in 3gpp TS 38.300 and related specifications, the access nodes 103-104 typically correspond to 5G NodeB (gNB), and the network node 106 typically corresponds to an access and mobility management function (AMF) and/or a User Plane Function (UPF). The gNB is part of the radio access network 10, in this case the radio access network 10 is a NG-RAN (next generation radio access network), whereas both the AMF and the UPF are part of a 5G core network (5 GC). The gNB is connected to each other via an Xn interface and to the 5GC via a NG interface, more specifically to the AMF via a NG-C and to the UPF via a NG-U. To support fast mobility between NR and LTE and avoid changes in the core network, the LTE eNB may also connect to the 5G-CN via NG-U/NG-C and support an Xn interface. The eNB connected to the 5GC is called a next generation eNB (NG-eNB) and is considered to be part of the NG-RAN. LTE connected to 5GC will not be discussed further in this document, however, it should be noted that most